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Inventi Impact - Power Electronics

Patent Watch

  • MODULAR TEMPERATURE PERFORMANCE DIAGNOSTIC FOR A VEHICLE

    A vehicle includes a power inverter module (PIM), a motor/generator unit (MGU), vehicle components, temperature sensors, and a controller. The sensors measure temperatures of a motor winding of the MGU, and temperatures of the multiple phase outputs of the PIM. The second plurality of temperature sensors measures temperatures of the vehicle components. The controller calculates an average temperature of the components, and individually diagnoses each temperature sensor using the average temperature. A control circuit for the vehicle includes the first and second plurality of sensors and the controller. A temperature performance diagnostic method includes using the first plurality to measure a temperature of the motor winding and the phase outputs of the PIM, using the second plurality to measure a temperature of the components, calculating an average temperature of the components, and individually diagnosing the performance of each of the first plurality of sensors using the average temperature.

  • COOLING HEAT GENERATING EQUIPMENT

    In one general embodiment, a system includes a working fluid operable to be circulated through a working cycle. The working cycle includes one or more expander-generators driven by the working fluid to generate electrical power at a first condition; an evaporator heat exchanger; and a condenser heat exchanger. The system includes power electronics thermally coupled to a heat exchanger and adapted to convert the electrical power at the first condition to electrical power at a second condition; and a conduit in fluid communication with the working cycle and the heat exchanger. The conduit is adapted to circulate the working fluid through the heat exchanger such that heat generated by the power electronics is transferred to the working fluid.

  • VIDEO DISPLAY WITH DETACHABLE INPUT/OUTPUT CONSOLE

    A flat panel video display comprising a separable and removable cartridge comprising connectors and/or circuitry of the input/output electronics that can be removed from the video display. The input/output (and optionally the A/C power) circuitry is enclosed in the cartridge, which can be inserted into and removed from a similarly shaped cavity in the case of the video display. Both the cartridge and cavity have corresponding channels allowing the cartridge to slide properly into place while preventing incorrect insertion of the cartridge. Once fully inserted into the cavity, all electronic connections are made between the circuit board (and optionally A/C power) in the cartridge and the rest of the video display are made allowing the video display to function normally. The cartridge body has a latching mechanism tensioned by a spring allowing it to lock into place. The latch is disengaged by depressing a button on the exposed side of the cartridge, allowing the cartridge to be removed. The lip of the cartridge around the depressed button can serve as a handle to pull out the cartridge. If A/C power is integrated into the cartridge, the latch can activate a switch that breaks the connection of the hot wire and the neutral (leaving the ground connected) cutting power to all electronics in the cartridge and video display and preventing a potentially harmful arc while removing or inserting the cartridge.

  • POWER TOOL HAVING A DIRECT CURRENT MOTOR AND POWER ELECTRONICS

    A power tool has a direct current motor and power electronics including power components and logic components for operating the direct current motor. The power components are situated on the direct current motor as a power unit.

  • OPTICAL SENSOR SYSTEM AND DETECTING METHOD FOR AN ENCLOSED SEMICONDUCTOR DEVICE MODULE

    A sensor system and method for a power electronics module is discussed. The system comprises a optical fibre 318 mounted inside the module housing 302 and connected to an external sensor system 320 (not shown). The optical fibre 318 is arranged so that it lies proximate to one or more semiconductor dies 308 within the housing, and can sense their temperature. The fibre can be connected to the die 308 by glue, mechanical connection, or can in other examples by provided in the underlying support structure such as a DCB (direct copper bonded ceramic structure) or base plate 304. The fibre can contain an optical grating, such as an FBG or LPG, or can operate based on interferometry, to detect temperature or strain.

  • Multi-Mission Frameless Airship Platform

    Multi-Mission Frameless Airship Platform (MFAP) leverages composite material science to achieve a frameless lightweight airframe design enabling increased speed, lift and cargo capacity. Deployable/retrievable high-value modules provide enhanced operational and mission flexibility. Unified power electronics enable hybrid integration of propulsion, power generation (e.g. diesel generator, photovoltaic solar, etc.), energy storage and tethered wind-power generation for both on-grid and off-grid electrical power delivery for airborne operations and ground operations. Onboard antenna systems serve as cell phone towers.

  • CORIOLIS MASS FLOWMETER

    A Coriolis mass flowmeter (1) having at least one sensor arrangement (2), at least one transducer (3) and at least one housing (4), wherein the sensor arrangement (2) has at least one measuring tube (5) that can be excited to oscillation, at least one oscillation generator (6) and at least one oscillation sensor (7), wherein the transducer (3) at least in part has evaluation and power electronics for controlling and measurement evaluation of the sensor arrangement, wherein the sensor arrangement (2) and the transducer (3) are arranged adjacent to one another in a common volume defined by the housing (4). A Coriolis mass flowmeter of the described type, in which the physical interaction between the sensor arrangement and transducer is reduced, is realized by the provision of a thermal barrier (8) arranged at least in a space between the sensor arrangement (2) and the transducer (3).

  • OPERATING METHOD FOR A HYBRID VEHICLE WHICH IS DRIVEN ON A CIRCUIT

    A hybrid vehicle has an internal combustion engine and a coolable electrical system having at least one connectable electrical machine, power electronics and energy store. The electrical machine can be operated as a motor or a generator. The acceleration profiles of the vehicle, power profiles of the electrical system and temperature profiles of the electrical system are recorded and stored during the respective lap that is being driven and, furthermore, the profile of the performance of the electrical system is optimized with respect to the thermal load capacity of the electrical system in the respective next lap. This allows an optimum power profile of the electrical machine during real operation when a circuit is driven around repeatedly.

  • COOK-TOP HAVING AT LEAST THREE HEATING ZONES

    A cook-top or hob includes multiple inductors and at least three heating zones which are operated by the inductors. A single power electronics subassembly supplies the inductors with heating current and includes a common rectifier which is operably connected to the inductors for rectifying an alternating current supplied by a single phase of a household electrical system.

  • Direct Current Motor with Independently Driven and Switchable Stators

    An apparatus and method are provided for adjusting torque and speed of a motor, while remaining within the voltage limit of a power supply. The invention provides a brushless direct current motor with independently driven and switchable stators. In an aspect, each stator and the rotor is structured to function as an independent motor separate from another stator and the rotor. A first power electronics directs energy to a first stator, and a second power electronics directs energy to a second stator. A rotor rotates relative to the stators. In an aspect, a commutation electronics determines electrical position of the rotor relative to the stators, and synchronizes current pulses directed to a sequentially selected phase of the stators, to generate a rotating magnetic field that communicates with the rotor. A controller sets the connection of the first power electronics in series or in parallel with the second power electronics.

  • COOKING HOB WITH SEVERAL HEATING ELEMENTS AND AT LEAST ONE POWER ELECTRONICS SUBASSEMBLY

    A cooking hob, in particular an induction hob, includes several heating elements, at least one power electronics subassembly for generating a heating current for operating the heating elements, and a switching arrangement for making and breaking a connection between the power electronics assembly and the heating elements. The switching arrangement is constructed as an assembly that is separate from the power electronics assembly.

  • DIAGNOSIS MANAGEMENT SYSTEM AND DIAGNOSIS MANAGEMENT METHOD FOR A VALVE-CONTROLLED HYDROSTATIC DISPLACEMENT UNIT

    A diagnosis management system for a hydrostatic displacement unit, including a control unit for controlling a drive motor, a hybrid control unit for controlling the motor control unit on the basis of at least one desired acceleration signal and one desired deceleration signal for the drive motor, a gear control unit for controlling the motor control unit on the basis of at least signals derived from a continuously variable gear, and a control unit for a digital displacement unit, for controlling at least one pump motor as the digital displacement unit is disclosed. The control unit for a digital displacement unit has at least one diagnostic interface, which detects operating values and/or operating states in order to detect system errors in the pump motor, a sensor unit portion associated with the pump motor, and/or a power electronics portion associated with the pump motor; and at least one calculation portion, which preprocesses the operating values and/or operating states detected by the diagnostic interface. The at least one diagnostic interface and the at least one calculation portion are disposed for operating in a first system direction for diagnosis and for determining a correction of incident system errors, and in a second system direction for diagnosis and/or for performing the correction of incident system errors. A diagnosis management method can be performed by the diagnosis management system.

  • Electric Connection System

    The invention relates to a device for transmitting electrical energy from an agricultural utility vehicle (10) to an attachment (26) which can be reversibly coupled to the utility vehicle (10). The device comprises at least one power electronics system (38, 74) which is arranged on the utility vehicle side, at least one electrical utility vehicle interface (36) and at least one electrical attachment interface (34). The power electronics system (38, 74) can be supplied with electrical energy which can be generated by a generator (16) of the utility vehicle (10). The power electronics system (38, 74) can be connected electrically to the generator (16) and to the utility vehicle interface (36). The attachment (26) has at least one attachment interface (34) and at least one electrical load (30, 102, 104). An agricultural working function can be carried out with the electrical load (30, 102, 104) of the attachment (26). At least one utility vehicle interface (36) can be coupled to at least one attachment interface (34), and in this way at least some of the electrical energy which is generated by the generator (16) of the utility vehicle (10) can be transmitted to the attachment (26) via the utility vehicle interface (36).

  • Control System for a Power Converter and Method of Operating the Same

    A power converter employing a control system configured to make multiple functional use of a circuit node therein and method of operating the same. In one embodiment, the power converter includes a power train including at least one power switch. The power converter also includes a control system including an opto-isolator circuit, including a resistor, configured to receive an output signal from the power converter and provide a feedback signal to a feedback node for the control system to provide a switch control signal for the at least one power switch. The control system also includes a current source configured to produce multiple voltage levels at the feedback node in accordance with the resistor, thereby enabling multiple functional uses of the feedback node.

  • Electronic Interfacing with a Head-Mounted Device

    Power is delivered from a power source in a head-mounted device to a separate accessory that is coupled to the head-mounted device. Power and signals are delivered on a common conductor that couples the head-mounted device to an accessory. One or both of the head-mounted device and the accessory are configured based on the signals. Power may be received at an accessory from the head-mounted device through a dedicated power conductor. Power may be delivered from a power source in a portable accessory to a head-mounted device that is coupled to the portable accessory and uses the power for circuitry in the head-mounted device that delivers audio to a user.

  • Electronic device and external power supply device control method applicable thereto

    An electronic device and an external power supply device control method applicable to the electronic device are disclosed. The electronic device is electrically connected to an external power supply device that is able to switch between an ON state and an OFF state. The electronic device includes a switch module and an internal power module. The switch module, when being triggered, generates a switch signal. The internal power module receives the switch signal and accordingly generates a trigger signal to the external power supply device, so that the external power supply device is triggered to switch from the OFF state to the ON state and accordingly supplies electric power to the electronic device.

  • Electrical power adapter

    Electrical power adapters comprising retractable prongs and/or retractable electrical outputs are disclosed. In one example, an electrical travel adapter includes a power unit having a retractable electrical output and a plug unit coupled to the power unit, the plug unit having a plurality of retractable prongs.

  • Method for automatically switching power states

    A method for automatically switching power states is disclosed. According to the method, when an electronic apparatus is in a power-saving state and a waking up time is reached, the electronic apparatus is switched into a working state, and when an executing time is reached, the electronic apparatus automatically executes an assigned function. After completing the assigned function, the electronic apparatus is switched back into the power-saving state for energy-saving purpose.

  • Power supply apparatus

    A power supply apparatus is provided. The power supply apparatus includes two power suppliers coupled in parallel so as to simultaneously supply the electric power required by an electronic product in operation. The power supply apparatus provided by the invention may stably/accurately output the desired DC output voltage to the electronic product, and may further in advance increase a main power generated inside the other power supplier when one of the power suppliers is over voltage, thereby avoiding an oversized voltage drop from occurring in the DC output voltage.

  • Method and system for operating a portable electronic device in a power-limited manner

    Improved techniques to manage operation of a portable electronic device having a substantially depleted battery when power is available from an external, power-limited source are disclosed. In one embodiment of the invention, the substantially depleted battery can be initially charged while a power-intensive operation is delayed. Once the battery has adequate charge to assist the external, power-limited source in powering the portable electronic device, the power-intensive operation can be performed. In this manner, power consumption of a portable electronic device can be managed so that reliable operation is achieved without exceeding limits on power being drawn from an external, power-limited source.

  • Systems and Methods for Powering Circuits for a Communications Interface

    Embodiments include systems and methods of powering data communications transmitter circuitry using current sinked from biasing circuitry used to bias a transmission line between the data communications transmitter circuitry and data communications receiver circuitry. In some embodiments, the current sinked from the biasing circuitry is sourced by a power supply configured to power the data communications receiver circuitry. The current sinked from the biasing circuitry is then re-used to power the data communications transmitter circuitry. The data communications transmitter circuitry can be operated using less power overall than the prior art by re-using the current first used to bias the transmission line to power the data communications transmitter circuitry. Various embodiments include HDMI transceivers, DVI transceivers, and DisplayPort transceivers.

  • ELECTRONIC DEVICE ASSEMBLY

    An electronic device assembly includes an electronic device and an enclosure receiving the electronic device. The electronic device includes a display and a sensor. The enclosure includes a cover and a controller attached to the cover. The cover is rotatable relative to the electronic device between a first position and a second position. In the first position, the cover covers the electronic device, and the controller controls the sensor transmitting a first signal to the electronic device, for turning off a power supplied to the display. In the second position, the electronic device is exposed, and the controller controls the sensor transmitting a second signal to the electronic device, for turning on the power of the display.

  • ELECTRONIC DEVICE HAVING SOLAR ENERGY MODULE

    An electronic device includes a display and a housing configured to house the display. A solar energy module is arranged in the housing, and configured for converting light into electricity. A light guide member includes an optical film with a micro-structure, which guides light incident on the light guide member to be split at a preset angle. The light guide member is arranged on and covers the display, and is configured for guiding incident light to the solar energy module.

  • POWER MANAGEMENT CIRCUITRY FOR ELECTRONIC DOOR LOCKS

    A power management circuit decreases power consumption in an electronic door lock. The power management circuit includes an ON/OFF circuit, a load switch circuit and a electronic door lock circuit. The ON/OFF circuit generates an initial enable signal in response to a detected keycard that places the load switch circuit in an enabled state. When enabled, the load switch circuit provides dc power to the electronic door lock circuit that allows the electronic door lock circuit to receive identification input from the detected keycard and determine whether an output should be generated to actuate the door lock mechanism. Having completed the keycard detection operation, the electronic door lock circuit generates a self turn-off signal that is provided as feedback to the ON/OFF circuit to disable the load switch circuit. When disabled, the load switch circuit prevents any power from being provided to the electronic door lock circuit and thereby conserves energy otherwise consumed by the electronic door lock in times between activations.

  • HEAT SINK FOR POWER CIRCUITS

    The present invention relates generally to a heat sink comprising a plurality of fins, each fin having two or more prongs extending from a root section of the fin. In certain embodiments, the heat sink may be assembled by aligning the plurality of fins within slots between protrusions extending from a base of the heat sink. However, in other embodiments, the plurality of fins may have connector ends having female sides and opposite male sides, wherein the plurality of fins may be attached to each other via the interlocking female and male sides, thereby forming at least part of the base of the heat sink, and fortified with reinforcing members.

  • HEAT SINK COOLING ARRANGEMENT FOR MULTIPLE POWER ELECTRONIC CIRCUITS

    The present invention relates generally to tuning the flow of cooling air across converter and inverter heat sinks in a motor drive system. More specifically, present techniques relate to motor drive duct systems including heat sinks with separate, sequential heat sink fin sections disposed in a common cooling air path and having different geometries to optimize the flow of cooling air across and between fins of the separate heat sink fin sections. For example, the heat sink fin sections may have different fin lengths, fin heights, fin counts, fin pitch (e.g., distance between adjacent fins), and so forth. Each of these different geometric characteristics may be tuned to ensure that temperatures and temperature gradients across the heat sinks are maintained within acceptable ranges.

  • PACKAGE FOR SYSTEM LEVEL ELECTRONIC PRODUCTS

    Methods and arrangements for packaging system level electronics are described. In one aspect, an external skin of the package is formed from isolation paper. In some embodiments, the isolation paper is formed into a box. A printed circuit board is placed within the isolation paper skin and is substantially completely surrounded by a potting material that substantially completely fills the skin. The potting material is cured to solidify the potting material within the isolation paper box and to adhere the potting material to the isolation paper such that the isolation paper forms a skin for a brick of potting material that encapsulates the printed circuit board. The isolation paper skin includes at least one opening that permits an interconnect to be exposed through the skin. With this arrangement, a packaged electronics device is provided and the isolation paper forms the exposed outer surface of the packaged electronics device. The described package is particularly well suited for use in packaging system level power electronics such as power supplies.

  • Stationary Energy Generation Plant Having a Control Device and Method for Controlling the same

    A stationary energy generation plant includes a control device that serves to control current and energy flow. The energy generation plant includes at least one mechanically driven rotor and a generator mechanically coupled to the rotor. To this end, power electronics operationally connected to the generator enable variable energy flow from the rotor through the generator and the power electronics to a load. In order to compensate for vibrational loads on the generator side, at least one current control is made possible by means of a first intermediate circuit storage of the power electronics. In order to compensate for mechanical vibrational loads and transients of a drivetrain, an energy flow control is provided by means of at least one additional second intermediate circuit storage disposed in the power electronics and having a multiple of the storage capacity of the first intermediate circuit storage.

  • HEAT SINK SYSTEM AND ASSEMBLY

    A heat sink system with reduced airborne debris clogging, for cooling power electronics, the heat sink system including a heat sink having a plurality of fins, a housing configured to direct air flow around the side, top, and/or bottom of the heat sink and then through the fins of the heat sink at a back of the heat sink, and an inlet airway passage formed between a wall of the housing and said side, top, and/or bottom of the finned heat sink to allow air to pass within the housing, wherein said side, top, and/or bottom of the heat sink comprises at least one of said plurality of fins disposed directly in contact with the inlet airway passage.

  • TENSION MONITORING ARRANGEMENT AND METHOD

    Tension monitoring is described using a sensor which may exhibit an offset for which compensation may be provided to produce a zero voltage amplified output or to increase dynamic range. An arrangement determines whether a power reset is responsive to a battery bounce such that an initially-measured system start-up parameter can be retained. The start-up parameter is automatically saved at start-up if the power reset is responsive to a start-up from a shut-down condition. The start-up parameter may be a zero tension amplified output responsive to the sensor offset at zero tension. Protection of a tension data set is provided such that no opportunity for altering the data set is presented prior to transfer of the data set. A housing configuration forms part of an electrical power circuit for providing electrical power to an electronics package from a battery.

  • METHOD OF OPERATING A HOUSEHOLD APPLIANCE

    In a method for operating a household appliance having at least one electrical consumer activated by power electronics an actual value representing a temperature loading of the power electronics is determined and compared with a limit value representing a maximum tolerable temperature loading of the power electronics in normal load operation. When the actual value is below the limit value; an overload operation is enabled at least temporarily with a higher power than in normal load operation.

  • DUAL WIRE DYNAMIC PROXIMITY TRANSDUCER INTERFACE FOR USE IN PROXIMITY TRANSDUCER SYSTEM AND PROXIMITY TRANSDUCER SYSTEM INCLUDING THE SAME

    A proximity transducer system including an eddy current effect proximity probe, a proximity electronics module coupled to the probe, a monitoring system and a two-wire, current interface connecting the proximity electronics module to the monitoring system is disclosed. The proximity transducer system is operative for measuring position and vibration of a component to be monitored. The current interface is made up of a pair of wires, e.g., a twisted pair, and is adapted for providing power to the electronics module and an electrical signal from the proximity electronics module that is representative of (e.g., proportional to) the length of the gap between the probe and the component being monitored. That signal has a DC component that represents a steady state distance and an AC component that represents active movement of the component, such as vibration.

  • METHOD FOR OPERATING A DOUBLY FED PERMANENT MAGNET SYNCHRONOUS MACHINE, AND A SYSTEM COMPRISING SUCH A MACHINE AND A CONVERTER

    A method for operating a doubly fed permanent magnet synchronous machine and a system including such a machine and a converter for feeding and withdrawal of power. The machine has two or more winding groups where at least one winding group is connected directly to a grid and at least one winding group has the possibility to be connected to the grid via a power electronics converter or directly.

  • WIND TURBINE HAVING POWER ELECTRONICS IN THE NACELLE

    A wind turbine comprising a nacelle (1) is disclosed. The nacelle (1) accommodates at least a generator (3) and power electronics electrically interconnected between the generator (3) and a power grid. At least one power electronic component (10, 11, 12) is removably arranged in the nacelle (1) in a region positioned between a floor level of the nacelle (1) and a lower limiting surface, e.g. a bottom wall, of the nacelle (1). The space available in the interior parts of the nacelle (1) is thereby utilised to a greater extent than in prior art wind turbines, and replacement of a power electronic component (10, 11, 12) can be performed using ordinary lifting equipment. Furthermore, the risk of injury to maintenance personnel is reduced.

  • Thermal Management System with Dual Mode Coolant Loops

    A dual mode, thermal management system for use in a vehicle is provided. At a minimum, the system includes a first coolant loop in thermal communication with a battery system, a second coolant loop in thermal communication with at least one drive train component (e.g., electric motor, power electronics, inverter), and a dual mode valve system that provides means for selecting between a first mode where the two coolant loops operate in parallel, and a second mode where the two coolant loops operate in series.

  • ELECTRIC POWERTRAIN FOR WORK MACHINE

    An electric powertrain includes an engine configured to provide mechanical energy and a generator operably coupled to the engine and configured to convert at least a portion of the mechanical energy into electric energy. The electric powertrain further includes at least one electric motor operably coupled to the generator, a plurality of driving members, and at least one power electronics unit configured to control at least one of the engine and the generator. The at least one electric motor is configured to provide torque for the plurality of driving members.

  • HYBRID VEHICLE POWERTRAIN COOLING SYSTEM

    Some exemplary embodiments include a hybrid vehicle cooling system comprising a closed loop coolant flowpath including a valve operable to direct coolant flow to an internal combustion engine or to an internal combustion engine bypass, a thermostat operable to direct coolant flow from the internal combustion engine or the internal combustion engine bypass to a radiator or a radiator bypass, a plurality of hybrid powertrain components positioned in parallel to receive coolant flow from the radiator or the radiator bypass, a mechanically driven coolant pump operable to pump coolant through the closed loop coolant flowpath, and an electrically driven coolant pump operable to pump coolant through the closed loop coolant flowpath. Additional exemplary embodiments include methods of operation and/or control of hybrid vehicle cooling systems.

  • BATTERIES WITH PHASE CHANGE MATERIALS

    A battery pack with phase change materials (PCM). The PCM would improve the heating and cooling capabilities under various vehicle operating conditions. Methods of controlling the temperature in battery packs are also described.

  • COMPENSATION FOR SPECTRAL CROSSTALK IN MULTIPLEX NUCLEIC ACID AMPLIFICATION

    A method includes performing a nucleic acid amplification of a nucleic acid sample using a detection probe, wherein the nucleic acid amplification occurs over one or more interrogation periods, and, from the nucleic acid amplification, acquiring amplification data that indicates an amount of nucleic acid present for each of the one or more interrogation periods. The method also includes, based on the amplification data, determining a crosstalk correction value associated with a spectral neighbor to the probe to reduce spectral crosstalk from the spectral neighbor; and applying the crosstalk correction value to amplification data collected from multiplex nucleic acid amplifications of nucleic acid samples.

  • CARTRIDGE AND SENSOR-DISPENSING INSTRUMENT

    A disposable cartridge adapted to be used with a sensor-dispensing instrument comprises a housing, test sensors, a mechanical mechanism and moveable seals. The housing forms at least one opening therethrough. The test sensors are stacked in the housing. The test sensors are adapted to assist in testing at least one analyte. The mechanical mechanism is adapted to urge the test sensors in a first direction. One of the test sensors is positioned for ejection from the cartridge. The moveable seals is adapted to be in a closed position that seals the at least one opening so as to provide a substantially moisture-proof and a substantially air-tight cartridge, and one of the moveable seals is adapted to be in an open position that allows one of the test sensors to be moved therethrough.

  • Patterned Substrate for Hetero-epitaxial Growth of Group-III Nitride Film

    A circuit structure includes a substrate and a film over the substrate and including a plurality of portions allocated as a plurality of rows. Each of the plurality of rows of the plurality of portions includes a plurality of convex portions and a plurality of concave portions. In each of the plurality of rows, the plurality of convex portions and the plurality of concave portions are allocated in an alternating pattern.

  • SYSTEM FOR DETERMINING CO2 EMISSIONS

    CO2G0 is a novel method to automatically estimate in real-time a person's CO.sub.2 emissions associated with transportation mode choices using data--specific inertial information gathered from mobile phone sensors. CO2G0 automatically classifies the user's transportation mode among eight classes by using a Functional Tree. The algorithm is trained on features gathered from an accelerometer, GPS receiver and digital maps. A working smartphone application for the Android platform has been developed and experimental data have been used to train and validate the proposed method. A second algorithm computes the traveled distance, through an optimized mix of GPS and Internet map services.

  • Surface-Etched Etched Alumina/SiC Mini-Whisker Composite Material and Uses Thereof

    A composition of matter comprising 0.01 to 35% by weight of Al.sub.2O.sub.3, having a length of 10-20 .mu.m and a surface altered by wet etching, 0.01 to 98% by weight of SiC, having a length of 10-20 .mu.m and a surface altered by dry etching; and 0.01-15% by weight of kaolin, altered by treatment with Na.sub.2SiF.sub.6, with the above constituents being blended into a SiC/Al.sub.2O.sub.3 composite. Alternative embodiments are methods of producing the compositions described above. Further embodiments include products made by the process described above.

  • CONNECTION AND ALIGNMENT SYSTEMS AND METHODS

    A delivery system for delivering fluidic media to a user having a second housing portion configured to be selectively operatively engaged with and disengaged from a first housing portion, the first housing portion and the second housing portion configured to be slidable relative to each other to operatively engage each other; and a fluid connector supported by one the housing portions in a position to engage a reservoir supported by an other of the housing portions in a case where the first housing portion and the second housing portion are slid relative to each other to operatively engage each other.

  • MACHINE AND POWER SYSTEM WITH ELECTRICAL ENERGY STORAGE DEVICE

    A machine includes a power system. The power system may include a prime mover drivingly connected to an electric generator. The power system may also include a power line operably connected to the electric generator. Additionally, the power system may include a first electrical energy storage device operable to exchange electricity with the power line. The power system may also include a second electrical energy storage device. The power system may further include power-system controls. The power-system controls may include a first power regulator. The power-system controls may also include at least one information processor configured to receive information related to at least one operating parameter of the power system and control the first power regulator based on the received information, including selectively controlling the first power regulator to receive electricity from the second electrical energy storage device and supply the electricity to the first electrical energy storage device.

  • APPARATUSES, METHODS, AND SYSTEMS FOR THERMAL MANAGEMENT OF HYBRID VEHICLE SCR AFTERTREATMENT

    Some exemplary embodiments include hybrid vehicle systems including an engine operable to output exhaust, an exhaust aftertreatment system configured to receive the exhaust from the engine, the exhaust aftertreatment system including an SCR catalyst operable to reduce NOx in the exhaust and an electrical heater operable to heat the SCR catalyst, a motor/generator operable in a braking mode to receive torque to slow the vehicle and output electrical power, an energy storage device operable to output electrical power to drive the motor/generator and receive electrical power from the motor/generator, and a controller operable to control the electrical heater to heat the SCR catalyst using electrical power from the motor/generator in the braking mode.

  • COLD PLATE ASSEMBLIES AND POWER ELECTRONICS MODULES

    A cold plate assembly includes an inlet manifold layer, a target heat transfer layer, a second-pass heat transfer layer, and an outlet manifold layer. The inlet manifold layer includes a coolant fluid outlet and an inlet channel. The inlet channel includes a plurality of fluid inlet holes fluidly coupled to a plurality of impingement jet nozzles. The target heat transfer layer includes a plurality of target heat transfer cells having a plurality of target heat transfer layer microchannels extending in a radial direction from a central impingement region. The second-pass heat transfer layer includes a plurality of second-pass heat transfer cells having a plurality of second-pass heat transfer layer microchannels extending in a radial direction toward a central fluid outlet region, and one or more transition channels. The impingement jet nozzles are positioned through the central fluid outlet region. The outlet manifold layer includes an outlet channel having a plurality of fluid outlet holes.

  • POWER ELECTRONICS INVERTER WITH CAPACITOR COOLING

    A power electronics inverter includes a housing which forms a cold plate with coolant passages. The housing encloses an insulated gate bipolar transistor (IGBT), and a DC Link capacitor. The capacitor comprises a bus-bar which exits from a bottom side of the capacitor, and the bus-bar is positioned adjacent to the cold plate. The cold plate forms a cooling passage which underlies the IGBT and the capacitor bus-bar. Thermally conductive gap pads are located between the capacitor bus-bar and the cold plate.

  • COOK TOP COMPRISING AT LEAST TWO HEATING ELEMENTS AND A POWER ELECTRONICS ARRANGEMENT

    A cook top with at least two heating elements includes a power electronics arrangement connected to a domestic single phase AC supply. The power electronics arrangement includes several power supply units, which each supply heating currents to one or more heating elements, and a switch arrangement with several electromechanical relays for connecting/disconnecting the power supply units to/from the heating elements. Output poles of at least two electromechanical relays associated with different power supply units are connected in parallel, wherein the parallel connection is permanently connected to at least one of the heating elements. This arrangement reduces the number of switching processes required for alternating use of a power supply device with several heating elements, and simplifies compliance with electromagnetic compatibility standards.

  • POWER ELECTRONICS ASSEMBLY FOR A MAGNETIC RESONANCE DEVICE

    A power electronics assembly for a magnetic resonance device includes a housing and at least one printed circuit board (PCB) arranged in the housing with at least one power electronics component to be cooled. The PCB has an at least one millimeter thick backside layer that may be made of copper. The power electronics assembly also includes a stabilizing cooling plate configured as part of the housing and/or the housing includes at least one coolant channel open on at least one side, so that the PCB mounted on the cooling plate comes into direct contact with coolant guided in the coolant channel in an area of the power electronics components with the backside layer.

  • COLD PLATE ASSEMBLIES AND POWER ELECTRONICS MODULES

    A cold plate assembly includes an inlet manifold layer, a target heat transfer layer, a second-pass heat transfer layer, and an outlet manifold layer. The inlet manifold layer includes a coolant fluid outlet and an inlet channel. The inlet channel includes a plurality of fluid inlet holes fluidly coupled to a plurality of impingement jet nozzles. The target heat transfer layer includes a plurality of target heat transfer cells having a plurality of target heat transfer layer microchannels extending in a radial direction from a central impingement region. The second-pass heat transfer layer includes a plurality of second-pass heat transfer cells having a plurality of second-pass heat transfer layer microchannels extending in a radial direction toward a central fluid outlet region, and one or more transition channels. The impingement jet nozzles are positioned through the central fluid outlet region. The outlet manifold layer includes an outlet channel having a plurality of fluid outlet holes.

  • POWER ELECTRONIC MODULE WITH NON-LINEAR RESISTIVE FIELD GRADING AND METHOD FOR ITS MANUFACTURING

    Exemplary embodiments are directed to a power electronic device with an electronic device including a substrate, a metal layer formed on the substrate and a field grading means located along an edge of the metal layer. The field grading means has a non-linear electrical resistivity.

  • ELECTRIC DRIVE AND BATTERY CHARGING POWER ELECTRONIC SYSTEM

    An electric drive that provides power from a DC battery to an AC motor and for charging the DC battery when power is being supplied through the motor windings such that no secondary on-board system for charging the battery or specialized charging station is required. A DC battery is in electronic communication with a three-phase inverter that converts DC power received from the battery into an alternating current when a switch is placed into a closed position. The three-phase inverter is in communication with a three-phase stator such that it supplies the stator with the converted AC power. Once power is received by the stator an air flux and electronic current are produced that interact to produce torque on a rotor creating mechanical energy. When the switch is placed in an open position, the three phase stator discontinues supplying almost all the power to the rotor but rather receives alternating current from an already available three-phase voltage network. The alternating current is transferred into the inverter where it is converted into a direct current that is supplied to the battery to recharge the battery. A control device is provided to control how much power is drawn from and supplied to the battery.

  • SYSTEM AND METHOD FOR EMPLOYING SIGNOFF-QUALITY TIMING ANALYSIS INFORMATION CONCURRENTLY IN MULTIPLE SCENARIOS TO REDUCE DYNAMIC POWER IN AN ELECTRONIC CIRCUIT AND AN APPARATUS INCORPORATING THE SAME

    A dynamic power recovery system and method are disclosed herein. Additionally, an EDA tool and apparatus configured to perform dynamic power recovery are disclosed. In one embodiment, the system includes: (1) a power recovery module configured to carry out an instance of an initial power recovery process in each of multiple scenarios concurrently, the initial power recovery process including making first conditional downsizing of cells in at least one path in a circuit design with lower dynamic power cells and estimating a delay and a slack of the at least one path based on the first conditional downsizings and (2) a speed recovery module associated with the power recovery module and configured to carry out a speed recovery process in each of the multiple scenarios concurrently, the speed recovery process including determining whether the first conditional downsizings cause a timing violation with respect to the at least one path and making second conditional upsizings with higher dynamic power cells until the timing violation is removed.

  • METHOD AND SYSTEM FOR DISCOVERY, VALIDATION AND DELIVERY OF POWER THROUGH A UNIVERSAL POWER CENTER

    A system and method of discovery, validation and delivery of power to an electronic device through a universal power center is provided. The method comprises providing a power tip for an electronic device with a unique identification and broadcasting the unique identification to a power center. The method further includes verifying the unique identification and connection location of the electronic device, determining power requirements for the connected electronic device based on the unique identification and connection location, and delivering power to the electronic device based on the determined power requirements.

  • MOBILE TERMINAL AND CONTROL METHOD THEREOF

    The present invention relates to a mobile terminal and control method thereof capable of managing power consumption. The mobile terminal according to an embodiment of the present invention may include a battery unit configured to supply power to an electronic element mounted on a terminal body, a measurement unit configured to measure a battery remaining amount for the battery unit, and a controller configured to set a battery assigned amount for the battery unit to a designated contact address, and implement a limited mode according to a result of comparing the battery remaining amount with the battery to assigned amount, and limit a function based on information on the contact addresses other than the designated contact address when the limited mode is implemented.

  • METHODS FOR PRETREATMENT OF GROUP III-NITRIDE DEPOSITIONS

    Embodiments of the present disclosure relate to methods for pretreatment of substrates and group III-nitride layers for manufacturing devices such as light emitting diodes (LEDs), laser diodes (LDs) or power electronicdevices. One embodiment of the present disclosure provides a method including providing one or more substrates having an aluminum containing surface in a processing chamber and exposing a surface of each of the one or more substrates having an aluminum containing surface to a pretreatment gas mixture to form a pretreated surface. The pretreatment gas mixture includes ammonia (NH.sub.3), an aluminum halide gas (e.g., AlCl3, AlCl) and an etchant containing gas that includes a halogen gas (e.g., Cl2) or hydrogen halide gas (e.g., HCl).

  • POWER ELECTRONIC MODULE WITH NON-LINEAR RESISTIVE FIELD GRADING AND METHOD FOR ITS MANUFACTURING

    Exemplary embodiments are directed to a power electronic device with an electronic device including a substrate, a metal layer formed on the substrate and a field grading means located along an edge of the metal layer. The field grading means has a non-linear electrical resistivity.

  • ELECTRIC OPERATING SYSTEM FOR OPERATING AT LEAST ONE ELECTRIC EQUIPMENT FOR A WORK MACHINE AND WORK MACHINE COMPRISING AN ELECTRIC OPERATING SYSTEM

    An electric operating system for operating at least one electric equipment article for a work machine is provided. This electric operating system includes a flywheel generator for generating electric power needed for the operation of the at least one electric equipment article. Further, the system includes a power electronic device connected to the output of the flywheel generator for adapting a voltage level provided by the flywheel generator to a voltage level required for the operation of the at least one electric equipment article. Finally, the system includes a connector device adapted for to be connectable to the power electronic device and the at least one electric equipment article when the at least one electric equipment article is attached to, or arranged at, the work machine for providing the at least one electric equipment article with electric power at the adapted voltage level.

  • METHOD FOR EMULATION OF SYNCHRONOUS MACHINE

    The present invention relates to electric energy sources, such as a single wind power turbine or wind power plant, that are interfaced with the utility grid through power electronic converters. In particular, the present invention relates to specific techniques and methodologies for power electronic converters for stabilizing the utility grid during transient conditions and for providing similar stability mechanisms that are inherently present in electric synchronous generators while maintaining the possibility for fast and decoupled following of set points for generated active and/or reactive powers.

  • POWER SUPPLY

    A power supply to provide electrical power to one or more loads. The power supply may include a resonant air core transformer to provide an adjustable and adaptable source of power to electronic devices. The power supply may include isolated primary-side circuitry and secondary-side circuitry. The primary-side circuitry may include control circuitry that, among other things, provides drive waveforms for the primary-side switching circuitry. In embodiments configured to produce AC output, the secondary-side circuitry may also include switching circuitry. The primary-side control circuitry may provide drive waveforms for the secondary-side switching circuitry. The secondary-side circuitry may include measurement circuitry that measures the current and/or voltage of the output and provides those measurements to the control circuitry through isolation circuitry. The control circuitry may adjust the drive waveforms for the primary-side and/or secondary-side switching circuitry as a function of the measured values.

  • CAPACITIVE POWER SUPPLY FOR HANDHELD DEVICE

    A handheld device includes an electronic instrument and a capacitive power supply for storing and delivering power to the electronic instrument. The capacitive power supply includes at least one capacitor, and an electronic circuit operable to boost a voltage from the capacitor to a higher voltage for use by the electronic instrument. The capacitive power supply can be rapidly recharged.

  • CAPACITIVE POWER SUPPLY FOR HANDHELD DEVICE

    A handheld device includes an electronic instrument and a capacitive power supply for storing and delivering power to the electronic instrument. The capacitive power supply includes at least one capacitor, and an electronic circuit operable to boost a voltage from the capacitor to a higher voltage for use by the electronic instrument. The capacitive power supply can be rapidly recharged.

  • APPARATUS OR CIRCUIT FOR DRIVING A DC POWERED LIGHTING EQUIPMENT

    An apparatus that can operate with electronic ballasts (10) for electric discharge lamps to drive dc-powered lighting equipment (26) is provided. The apparatus is directly connected to the output of the electronic ballast (10) and is then used to control the power being supplied to the dc-powered lighting equipment (26). The maximum power delivered to the dc-powered lighting equipment (26) is substantially equal to the rated output power of the electronic ballast (10). A switching converter is acted as the necessary input impedance for the electronic ballast (10). Thus, the active power and reactive power drawn from the electronic ballast (10) can be controlled. The output of the switching converter provides dc power for the dc-powered lighting equipment (26).

  • WIRELESS SENSOR WITH ENERGY SCAVENGER

    An apparatus (100) comprises a wireless sensor system (102) with electronic circuitry (104) and a power supply (106) for powering the electronic circuitry. The power supply comprises a primary cell (108) and an energy scavenger (110). The energy scavenger scavenges ambient energy and converts the scavenged ambient energy into electric energy. The sensor system is configured for having the primary cell power the electronic circuitry when the energy scavenger is inactive. The system is configured for performing at least one of having the energy scavenger power the electronic circuitry via the primary cell when the energy scavenger is active, using a capacitance of the primary cell as a buffer for the electric energy; and having the energy scavenger recharge the primary cell

  • BATTERY PACK AND POWER SUPPLY SYSTEM WITH THE SAME

    A power supply system includes a battery pack and an electronic device. The battery pack includes a battery, a voltage conversion circuit, and a first power port. The electronic device includes a second power port. When the battery pack is connected to the electronic device via the first power port and the second power port, the connection between the battery and the voltage conversion circuit is established, the voltage conversion circuit converts a voltage of the battery to a predetermined voltage and power the electronic device via the first power port and the second power port; when the battery pack does not connect to the electronic device, the connection between the battery and the voltage conversion circuit is cut off.

  • POWER SUPPLY APPARATUS, METHOD, AND RECORDING MEDIUM

    A power supply apparatus includes a power supply unit that wirelessly supplies power to an electronic apparatus, and a control unit that controls, if power output from the power supply unit to the electronic apparatus is lower than a first predetermined value, the communication unit so that a predetermined speed for transmitting the predetermined data is higher than a second predetermined value

  • Insulating and Dissipating Heat Structure of an Electronic Part

    An insulating and dissipating heat structure of an electronic part includes an electronic component, a heat sink attached to one surface of the electronic component, a housing having a first notch for coupling with the heat sink, and fluid filled in the housing for cooling. The housing is made of an insulating material. The heat sink, the fluid, and the housing of the present invention are able to lower the temperate and dissipate heat. Particularly, the housing has the character of insulation to meet the safety requirements of high power electronic parts, without concerning about electric conduction and leakage.

  • Low Battery Remote Display System

    A mobile device, e.g. a remote control, that communicates with a remote device. The device is controlled by a battery providing power for electronic circuits and components contained within the hand held remote control device. A battery monitoring device measures the voltage of the battery. A memory device saves the data generated by the battery monitoring device indicating the voltage of the battery. A transmission device transmits a notification to the display device when the voltage of the battery decreases to some predetermined level. The display device may receive the notification of a low battery from the hand held device. An application contained within the display device or the remote control displays a visual indication on the display device to the user indicating that the battery in the hand held device is low and requires recharging.

  • COOLING APPARATUS FOR COOLING A POWER ELECTRONIC DEVICE

    Exemplary embodiments are directed to a cooling apparatus for cooling a power electronic device, the apparatus including at least one panel that is adapted to be thermally connected to a heat source in order to receive heat from the heat source. The panel is also adapted to be thermally in contact with an air flow in order to transfer heat from the panel. The panel includes at least one hole between a first side of the panel and a second side of the panel. The hole is adapted to attenuate a vibrating air pressure generated by an acoustic noise source and carried by the air.

  • POWER ELECTRONIC DEVICE HAVING HIGH HEAT DISSIPATION AND STABILITY

    An insulating body embeds at least one integrated circuit chip and a first and second exposed heat sink exposed on a free surface opposite a mounting surface of the body. An external heat-sink extends above the free surface. The external heat-sink includes a first dissipative portion and a second dissipative portion for contacting the first and second heat-sinks on the free surface, respectively, as well as an insulating portion for electrically insulating the first dissipative portion from the second dissipative portion. The first dissipative portion and the second dissipative portion are symmetrical with respect to the insulating portion. An extension of the external heat-sink may provide a stabilizing element. The extension of the external heat-sink may alternatively thermally and electrically interconnect two insulating bodies, each body embedding at least one integrated circuit chip

  • MOTOR CONTROL CENTER NETWORK CONNECTIVITY METHOD AND SYSTEM

    A motor control center comprises a plurality of bays in which switchgear components, circuit protective components, automation components and power electronic components are disposed for driving motors and other loads. Network optical conductors are routed through one or more wireways adjacent to the bays. Distribution nodes are coupled to the conductors and are interconnected with respective network terminals within the bays. Components within individual bays for which EtherNet and/or Internet connectivity is desired are coupled to the network terminals. The conductors may comprise plastic optical fibers and may be designed to operate in the relatively high voltage environment of the motor control center bays.

  • ELECTRONIC MAGNETIC CONTACTOR

    Disclosed is an electronic magnetic contactor, the contactor including: an operation power supply unit inputting an operation power; an electronic switch driving unit receiving a power from the operation power supply unit to drive a power supply of a load; a switching unit switched by a pulse signal to drive the electronic switch driving unit; an operation state determination unit determining whether the electronic magnetic contactor is in an opened state or in a closed state; an input voltage sensing unit sensing an amplitude of an input voltage supplied from the operation power supply unit; and an input signal generation unit generating an input signal for determining whether the electronic magnetic contactor is inputted based on determined state by the operation state determination unit and the sensed amplitude by the input voltage sensing unit.

  • BATTERY PACK FOR AN ELECTRONIC DEVICE

    A battery pack for providing power to an electronic device which includes a rechargeable battery, a non-power line power source, and a circuit configured to selectively deliver direct current (DC) power from the non-power line source to at least one of the rechargeable battery and to the device based on communication between the electronic device and the battery pack. The electronic device can deliver system power to the device from at least one of the alternating current (AC) power source, a battery and one or more non-power line sources based on power detected from one or more of the power sources.

  • Personal Energy Memorabilia

    In a method for enhancing memorabilia, a store of energy harvested from the body of a person or animal relevant to an item of memorabilia is associated with the item. In representative embodiments, energy storage devices charged with such harvested energy are comprised in or secured with items of memorabilia or items accessory to them, where they may additionally power electronic devices.

  • Method and Device for Controlling a Configurable Power Supply

    An apparatus, device, and system for generating an amount of output power in response to a direct current (DC) power input includes a configurable power supply, which may be electrically coupled to the DC power input. The configurable power supply is selectively configurable between multiple circuit topologies to generate various DC power outputs and/or and AC power output. The system may also include one or more DC power electronic accessories, such as DC-to-DC power converters, and/or one or more AC power electronic accessories such as DC-to-AC power converters. The power electronic accessories are couplable to the configurable power supply to receive the corresponding DC or AC power output of the configurable power supply.

  • METHOD AND APPARATUS FOR TESTING A SEMICONDUCTOR DEVICE

    The present disclosure provides a method for testing a semiconductor device. The method includes providing a testing unit and an electronic circuit coupled to the testing unit and applying a first electrical signal to the testing unit. The method includes sweeping a second electrical signal across a range of values, the second electrical signal supplying power to the electronic circuit, wherein the sweeping is performed while a value of the first electrical signal remains the same. The method includes measuring a third electrical signal during the sweeping, the measured third electrical signal having a range of values that each correspond to one of the values of the second electrical signal. The method includes adopting an optimum value of the second electrical signal that yields a minimum value of the third electrical signal. The method includes testing the testing unit while the second electrical signal is set to the optimum value.

  • Safe Switch System and Method

    An apparatus comprises an enclosure, an electronic switch, and a solar panel. The enclosure is operable to house electronic components and is configured to be explosion proof. The electronic switch is in communication with the enclosure and the solar panel. The solar panel is operable to deliver power to the electronic switch without accumulating charge. The solar panel is further configured to deliver power to the electronic switch without generating any sparks.

  • ENERGY SAVING SWITCH DEVICE, AND METHOD THEREOF

    An energy saving switch device for an electronic apparatus, including: a power control unit, determining whether to provide an external power to the electronic apparatus according to an external control signal; a switch unit, coupled to the power control unit and the external power, and when receiving a power off signal, electrically disconnecting the external power from the electronic apparatus; and a detection unit, detecting whether a user is inside a predetermined range when the power control unit is not providing the external power to the electronic apparatus, and generating the power off signal when the user is not inside the predetermined range.

  • Safe Switch System and Method

    An apparatus comprises an enclosure, an electronic switch, and a solar panel. The enclosure is operable to house electronic components and is configured to be explosion proof. The electronic switch is in communication with the enclosure and the solar panel. The solar panel is operable to deliver power to the electronic switch without accumulating charge. The solar panel is further configured to deliver power to the electronic switch without generating any sparks.

  • Power supply system for an electronic flight bag

    A control system for providing electrical power to an electronic flight bag device on an aircraft. The control system including a power switching component coupled to a plurality of power sources and at least one electronic flight bag device. The power switching component is operative and configured to selectively apply electrical power from at least one of the plurality of power sources to the at least one electronic flight bag device based upon a condition of the aircraft.

  • COOLING APPARATUS FOR COOLING A POWER ELECTRONIC DEVICE

    Exemplary embodiments are directed to a cooling apparatus for cooling a power electronic device, the apparatus including at least one panel that is adapted to be thermally connected to a heat source in order to receive heat from the heat source. The panel is also adapted to be thermally in contact with an air flow in order to transfer heat from the panel. The panel includes at least one hole between a first side of the panel and a second side of the panel. The hole is adapted to attenuate a vibrating air pressure generated by an acoustic noise source and carried by the air.

  • SURGE CURRENT SUPPRESSING CIRCUIT

    A surge current suppressing circuit is applied between an AC power and an electronic device that receives the AC power via a first AC power line and a second AC power line. The surge current suppressing circuit has a first input fuse connected to the first AC power line, and a first air-core inductor connected in series with the first input fuse on the first AC power line to suppress a surge current. Depending upon the practical applications, the surge current suppressing circuit can further have a second air-core inductor connected to the second AC power line, a capacitor connected between the two AC power lines or both.

  • SURGE CURRENT SUPPRESSING CIRCUIT

    A surge current suppressing circuit is applied between an AC power and an electronic device that receives the AC power via a first AC power line and a second AC power line. The surge current suppressing circuit has a first input fuse connected to the first AC power line, and a first air-core inductor connected in series with the first input fuse on the first AC power line to suppress a surge current. Depending upon the practical applications, the surge current suppressing circuit can further have a second air-core inductor connected to the second AC power line, a capacitor connected between the two AC power lines or both.

  • LOW-POWER, LOW-LATENCY POWER-GATE APPARATUS AND METHOD

    A low-power, low-latency power-gate (LPLLPG) circuit is used to shut off or otherwise reduce power that is provided to electronic component(s), such as in a sleep or standby mode. ON-rush current is controlled by sizing at least one transistor in the power-gate circuit, and power consumption of the power-gate circuit in both standby state and active state is reduced by not using additional delay elements. Ramping up a gated voltage supply with low ON-rush current is performed by applying/using logic rather than delay signals. This logic does not turn ON transistors in the power-gate circuit until the gated voltage supply has ramped up close to a level of an ungated voltage supply. By not using additional delay cells, faster turn OFF of the gated voltage supply is obtained.

  • PROTECTIVE CASING

    A protective casing equipped with positioning unit and power supply unit can be used to accommodate an electronic device, which has or hasn't a GPS positioning system. A switch disposed in the protective casing can select from different operation modes so as to activate related functions to provide positioning data and/or electrical power for the electronic device, or the protective casing simply provides water-proof and rugged protection when both the positioning unit and the power supply unit are deactivated by the switch.

  • ELECTRONIC DEVICE AND METHOD FOR PREVENTING DATA LOSS

    The electronic device and a preventing data loss method adapted for an electronic device are disclosed. The electronic device includes a storage unit to store an application. The method includes the steps: running an application in response to user input. Detecting the user input in real time and starting to time when the user input is not detected, and evaluating whether the period timed reaches a predetermined time period. If the predetermined time period is elapsed, suspending the application and detecting an electric energy of a battery providing power to the electronic device; evaluating whether the electric energy of the battery reaches a preset value. If the electric energy of the battery reaches the preset value, making a backup of process data associated with the suspended application in the storage unit.

  • LIGHTING CONTROLLING METHOD, LIGHTING APPARATUS AND LIGHTING SYSTEM

    A lighting apparatus, a lighting system and a lighting control method are disclosed. The lighting apparatus includes an LED module, a heat sink for emitting heat generated from the LED module, a rectifier for rectifying an input commercial AC power, a transformer including a main coil and an auxiliary coil to transform the rectified power, and an electronic module for biasing a current used to drive the LED module based on the input voltage transported via the auxiliary coil.

  • METHOD AND APPARATUS FOR DEHYDRATION OF GLYCOL

    A method and apparatus for dehydration of glycol uses two galvanic electrodes submerged in a water-glycol mixture. Semiconductor switches are used to supply pulses from a direct current source and to control the polarization and current flow time in such a way as to produce an average current of zero and a switching frequency commensurate with electro-hydrodynamic frequency of the electrode and liquid system. By applying sufficiently low frequency of switching, stirring of glycol and removal of gas products from the electrodes is achieved. The glycol container has at least one submerged electrode module equipped with at least two galvanic electrodes. Each electrode is connected through pairs of high power electronic switches which cycle alternatively between the positive and negative terminals of a direct current power supply.

  • MANUFACTURING PROCESS OF A POWER ELECTRONIC DEVICE INTEGRATED IN A SEMICONDUCTOR SUBSTRATE WITH WIDE BAND GAP AND ELECTRONIC DEVICE THUS OBTAINED

    An embodiment of a process for manufacturing an electronic device on a semiconductor body of a material with wide forbidden bandgap having a first conductivity type. The process comprises the steps of: forming, on the semiconductor body, a first mask having a first window and a second window above a first surface portion and a second surface portion of the semiconductor body; forming, within the first and second surface portions of the semiconductor body underneath the first and second windows, at least one first conductive region and one second conductive region having a second conductivity type, the first conductive region and the second conductive region facing one another; forming a second mask on the semiconductor body, the second mask having a plurality of windows above surface portions of the first conductive region and the second conductive region; forming, within the first conductive region and the second conductive region and underneath the plurality of windows, a plurality of third conductive regions having the first conductivity type; removing completely the first and second masks; performing an activation thermal process of the first, second, and third conductive regions at a high temperature; and forming body and source regions.

  • POWER SUPPLY EQUIPMENT PROVIDING A DATA SIGNAL, IDENTIFICATION INFORMATION AND POWER TO AN ELECTRONIC DEVICE

    Power supply equipment includes an adapter to convert power from a power source to a DC power for powering an electronic device. The adapter includes circuitry for producing an analog data signal for use by the electronic device to control an amount of power drawn by the device. A cable has an output connector with a plurality of conductors to transfer the DC power and the analog data signal to the electronic device. The connector further includes circuitry to receive a data request from the electronic device and in response transmit a data output which identifies the power supply equipment to the electronic device.

  • APPARATUS AND METHOD FOR COMMUNICATING DATA AND POWER WITH ELECTRONIC DEVICES

    A system, topology, and methods for providing power or data to electronic devices are described generally herein. Other embodiments may be described and claimed. The system may include an internal power source, charging module, modem, and an external power coupling module.

  • SYSTEM EMPLOYING A THERMOELECTRIC DEVICE TO POWER AN ELECTRONIC CIRCUIT FROM HEAT GENERATED BY SEMICONDUCTOR DEVICES, AND METHOD OF POWERING A SYSTEM

    A system includes a plurality of semiconductor devices; an electronic circuit operatively associated with the semiconductor devices; a thermoelectric device structured to provide power to power the electronic circuit from heat generated by the semiconductor devices; a power supply structured to provide power to power the electronic circuit; a number of sensors structured to sense at least one characteristic of the semiconductor devices or the thermoelectric device; and a processor cooperating with the number of sensors to provide power to power the electronic circuit from at least one of the thermoelectric device and the power supply.

  • MOTION SENSITIVE AND CAPACITOR POWERED HANDHELD DEVICE

    A handheld device includes an electronic instrument and a capacitive power supply for storing and delivering power to the electronic instrument. The capacitive power supply includes at least one capacitor, and an electronic circuit operable to boost a voltage from the capacitor to a higher voltage for use by the electronic instrument. The capacitive power supply can be rapidly recharged. Some configurations include an accelerometer which permits the handheld device to detect movement and perform various operations responsive to detected movement. A dual charging station is also disclosed.

  • METHOD AND DEVICE FOR ACTUATING AN ELECTRIC MACHINE IN THE MOTOR STARTING MODE

    The present invention relates to a method (30) for actuating an electric machine (14) in the motor starting mode by means of a power electronic system (10), in particular for application in a motor vehicle, wherein thepower electronic system (10) has a multiplicity of controllable power switches which are designed to supply the electric machine (14) with electric current (l_s), wherein a total amount of energy (50) which is required to reach a predefined rotational speed (n_crit) and a time period (t_0) for reaching the predefined rotational speed (n_crit) is estimated (38), wherein a setpoint torque (M) for starting the electric machine (14) is determined (42) on the basis of the estimated total amount of energy (50) and the estimated time (t_0), and wherein the power electronic system (10) is actuated (46) in accordance with the setpoint torque (M).

  • TRAY TABLE WITH ROTATABLE INNER TRAY FOR ELECTRONIC DEVICE DOCKING

    A tray table that provides in-flight entertainment in various forms of media as well as interactivity while being lightweight is disclosed herein. The tray table may provide a removable battery to power an electronic device. This eliminates the need for costly and heavy wiring. The tray table may provide an inner tray that allows the electronic device to be removed for handheld operation. An alert system may be used to prevent theft or unauthorized used by detecting when the electronic device is outside or disconnected from the inner tray.

  • POWER MODULE AND MANUFACTURING PROCESS

    A power module for a high frequency amplifier unit is provided. The power module includes a base support plate, on which at least one power electronic module is contacted via a number of contact pins. A shield plate is arranged on a side of the power electronic module facing away from the base support plate. The power electronic module is in contact with a cooling element at a side facing the shield plate.

  • MOMENTARILY ENABLED ELECTRONIC DEVICE

    A method and apparatus for providing intermittent or interruptible power to an electronic device. The circuit may provide power upon user initiation and interrupt that power in response to a user command, fault state, period of inactivity and so forth. As one example, interruptible power may be initially provided to activate or "power up" an electronic device and constant power provided after the initial activation. The initial powering up of the device may be facilitated by closing two contacts. The circuit may continue to provide power after the button is released through a monitoring and/or feedback mechanism.

  • INTEGRATING ENERGY BUDGETS FOR POWER MANAGEMENT

    Power consumption of a device (e.g., flash storage driver, hard drive, etc.) connected to a host computer system is managed to promote efficient power usage and improved service. Communication between a host computer system (e.g., an operating system) and a device is enabled so that the host system can ascertain a power footprint of the device. Taking the power footprint of the device into consideration, along with the power consumption of the system as a whole (e.g., including the power consumption needs of other devices), a power manager can provide a power budget to the device based upon an informed decision. This allows for improved system power management through a coordination of the device's power consumption by the host system, specifically during operation allowing device performance to be enhanced for the task at hand.

  • POWER TRANSMISSION SWITCHING

    A method for transmission network control, the transmission network being configured for use in providing electricity from a generator to an end user, the method including receiving a sensitivity parameter, identifying a switchable set of switches within the transmission network using the sensitivity parameter, determining a candidate switch from the switchable set to change a corresponding state, wherein the state can be changed from open to closed and closed to open, determining a proposed change of state of the candidate switch, updating an optimal power flow (OPF) problem as a function of the candidate switch and the proposed change of state, determining and storing in a memory a solution to the updated OPF problem, generating an updated sensitivity parameter based on the stored solution to the updated OPF problem, and determining, using the updated sensitivity parameter, if the stored solution to the updated OPF problem meets a predetermined criterion.

  • METHOD, APPARATUS, AND COMPUTER PROGRAM PRODUCT FOR POWER SAVING ENHANCEMENTS IN WIRELESS COMMUNICATION

    Method, apparatus, and computer program product embodiments enable power saving in network environments. An example embodiment comprises: transmitting by a first wireless device to a second wireless device, a first message indicating an awake state with availability to receive wireless messages from the second wireless device, the first message including a threshold value for acceptance by the first device of buffered data in the second device; and receiving by the first wireless device, an immediate acknowledgement message from the second wireless device, if the buffered data in the second device satisfies the threshold value or receiving by the first wireless device, a delayed acknowledgement message from the second wireless device, if the buffered data in the second device does not satisfy the threshold value.

  • BIPOLAR DC TO AC POWER CONVERTER WITH DC GROUND FAULT INTERRUPT

    An electrical power converter for converting power from a bipolar DC source to supply an AC load is disclosed. For one such embodiment the bipolar DC source is a photovoltaic array and the AC power is sourced into an electric power grid. The bipolar photovoltaic array has positive and negative voltage potentials with respect to earth ground. The converter is a utility interactive inverter which does not require an isolation transformer at the electric power grid interface. Embodiments of the invention include methods of detecting and interrupting DC ground faults in the photovoltaic array.

  • MECHANICALLY REMOVABLE WIRELESS POWER VEHICLE SEAT ASSEMBLY

    Described herein are improved capabilities for a system and method for wireless energy distribution to a mechanically removable vehicle seat, comprising a source resonator coupled to an energy source of a vehicle, the source resonator positioned proximate to the mechanically removable vehicle seat, the source resonator generating an oscillating magnetic field with a resonant frequency and comprising a high-conductivity material adapted and located between the source resonator and a vehicle surface to direct the oscillating magnetic field away from the vehicle surface, and a receiving resonator integrated into the mechanically removable vehicle seat, the receiving resonator having a resonant frequency similar to that of the source resonator, and receiving wireless energy from the source resonator, and providing power to electrical components integrated with the mechanically removable vehicle seat.

  • POWER MANAGEMENT IN SINGLE CIRCUIT HVAC SYSTEMS AND IN MULTIPLE CIRCUIT HVAC SYSTEMS

    A thermostat includes a plurality of HVAC (heating, ventilation, and air conditioning) wire connectors for receiving a plurality of HVAC control wires corresponding to an HVAC system. The thermostat also includes a thermostat processing and control circuit operative to at least partially control the operation of the HVAC system and a powering circuit coupled to the HVAC wire connectors and configured to provide an electrical load power to the thermostat processing and control circuit. The thermostat includes circuitry and methods for maximizing efficiency of energy harvested from the HVAC system connected to the thermostat, and depending on which system is connected to the thermostat, different power schemes can be implemented in order to obtain power from the HVAC system.

  • POWER TRANSMISSION FAULT ANALYSIS SYSTEM AND RELATED METHOD

    Systems configured to analyze and/or respond to faults detected during the operation of a power transmission system are disclosed. In one embodiment, a system includes: at least one computing device adapted to monitor operation of a power transmission system by performing actions comprising: processing operational data from a set of line phases in the power transmission system to detect a faulted line phase; opening a circuit breaker for the faulted line phase in response to detecting the fault; determining whether the fault is transient or permanent; and determining if an arc associated with the fault has been extinguished.

  • Transmission of Segmented Frames in Power Line Communication

    Segmented frames of data may be transmitted from a transmitting device using conflict free slots (CFS) within a carrier sense multiple access with collision avoidance (CSMA/CA) protocol on a noisy media. At a receiver, a segmented frame of data is received. The data is represented by a plurality of tones. If requested by the transmitter, a tone map response command is prepared that specifies a set of optimized tone map parameters by analyzing the received frame of data. Any previously determined tone map response commands to the transmitting device are deleted. A sequence of frame segments may be received in conflict free slots, but only one tone map response is transmitted to the transmitting device after receiving the entire sequence of frame segments.

  • WIRELESS COMMUNICATION DEVICE POWER REDUCTION METHOD AND APPARATUS

    A wireless communications power saving method and apparatus is provided. The method includes, when no reverse link traffic exists and no forward link traffic has been received for a predetermined amount of time, establishing, at a terminal, a reverse link transmission pilot signal duty cycle, and boosting overhead channel signal transmission power during ON slots and gating overhead channel and pilot signal transmission power during OFF slots. The design further includes estimating, at the terminal, an available data transmission rate, determining an actual data transmission rate, setting a terminal transmission duty cycle for a next period based on the estimated available data transmission rate, the actual data transmission rate, and a margin of error, and transmitting data from the terminal according to the terminal transmission duty cycle.

  • METHOD AND APPARATUS FOR REDUCING POWER CONSUMPTION IN A WIRELESS COMMUNICATION DEVICE

    A wireless communications power saving method and apparatus is provided. The method includes establishing a circular buffer configured to maintain a number of most recently encountered frame delay times and waiting a frame delay time after receiving a further frame before the station enters a power save state. Frame delay time is a period equal to a largest most recently encountered frame delay period in the circular buffer. The method further determines, at a station, a dormancy time based on a number of data frames received since the station transitioned from an inactive mode to an active mode, a packet transmission rate, and a data frame time interval representing time between data frames received at the station, and causes the station to switch to a further inactive mode if a next packet is not received within the dormancy time after receipt of a previous packet.

  • FILM MIRROR FOR SOLAR POWER GENERATION PURPOSES AND REFLECTION DEVICE FOR SOLAR POWER GENERATION PURPOSES

    A film mirror for solar thermal power generation and a reflecting device for solar thermal power generation each include a hard coat layer at an outermost surface of a resin support and a metallic reflective layer. The hard coat layer contains a resin containing a UV absorber and being cured by a process including a heating step.

  • EDGE SEAL FOR ELECTRONICS ASSEMBLY SUITABLE FOR EXPOSURE TO ELECTRICALLY CONDUCTIVE COOLANT

    A liquid cooled power electronics assembly configured to use electrically conductive coolant to cool power electronic devices that uses dielectric plates sealed with a metal sleeve around the perimeter of the dielectric plates to form a device assembly. The configuration allows for more direct contact between the electronic device and the coolant, while protecting the electronic device from contact with potentially electrically conductive coolant. Material used to form the dielectric plates and the housing are selected to have similar coefficients of thermal expansion (CTE) so that the reliability of the seals is maximized.

  • EDGE SEAL FOR ELECTRONICS ASSEMBLY SUITABLE FOR EXPOSURE TO ELECTRICALLY CONDUCTIVE COOLANT

    A liquid cooled power electronics assembly configured to use electrically conductive coolant to cool power electronic devices that uses dielectric plates sealed with a metal sleeve around the perimeter of the dielectric plates to form a device assembly. The configuration allows for more direct contact between the electronic device and the coolant, while protecting the electronic device from contact with potentially electrically conductive coolant. Material used to form the dielectric plates and the housing are selected to have similar coefficients of thermal expansion (CTE) so that the reliability of the seals is maximized.

  • LIQUID COOLED ELECTRONICS ASSEMBLY SUITABLE TO USE ELECTRICALLY CONDUCTIVE COOLANT

    A liquid cooled power electronics assembly configured to use electrically conductive coolant to cool power electronic devices that uses dielectric plates sealed with a metal sleeve around the perimeter of the dielectric plates to form a dA liquid cooled power electronics assembly configured to use electrically conductive coolant to cool power electronic devices that uses dielectric plates sealed with a metallic seal around the perimeter of the dielectric plates to form a device assembly, and then forms another metallic seal between the device assembly and a housing. The configuration allows for more direct contact between the electronic device and the coolant, while protecting the electronic device from contact with potentially electrically conductive coolant. Material used to form the dielectric plates and the housing are selected to have similar coefficients of thermal expansion (CTE) so that the reliability of the seals is maximized.onic device and the coolant, while protecting the electronic device from contact with potentially electrically conductive coolant. Material used to form the dielectric plates and the housing are selected to have similar coefficients of thermal expansion (CTE) so that the reliability of the seals is maximized.

  • SIGNAL TRANSMISSION DEVICE AND ELECTRONIC DEVICE

    Provided is a signal transmission device including a high-frequency signal waveguide that transmits a high-frequency signal emitted from an electronic device. When the electronic device is arranged close to the high-frequency signal waveguide, the high-frequency signal is transmitted via the high-frequency signal waveguide.

  • STORAGE CONTROL SYSTEM WITH POWER DOWN MECHANISM AND METHOD OF OPERATION THEREOF

    A storage control system and method of operation thereof includes: a control unit for initiating a hardening process beginning at a power-down signal; a counter module, coupled to the control unit for tracking a recorded time beginning at the power-down signal; a completion module, coupled to the counter module, for generating a work-complete entry in memory devices at a conclusion of the hardening process; and a calculation module, coupled to the completion module, for calculating a power down margin by determining the recorded time between the work-complete entry and a complete power loss of a hold-up power.

  • EYEWEAR DOCKING STATION AND ELECTRONIC MODULE

    An eyewear system including an eyewear frame and an application module. The eyewear frame including a docking station, and an electronic connector including a first set of preconfigured application connection points. The application module adapted to be mounted to the docking station, and including an electronic device configured to perform a function, and a second set of preconfigured application connection points corresponding to at least some of the first set of preconfigured application connection points. The second set of preconfigured application connection points including at least two different sub-function connections used to support the function of the electronic device.

  • VERTICAL CONDUCTION POWER ELECTRONIC DEVICE AND CORRESPONDING REALIZATION METHOD

    A vertical conduction power device includes respective gate, source and drain areas in an epitaxial layer on a semiconductor substrate. The respective gate, source and drain metallizations may be provided by a first metallization level. The gate, source and drain terminals may be realized by a second metallization level. The device is configured as a set of modular areas extending parallel to each other, each having a rectangular elongate source area perimetrically surrounded by a narrow gate area, and separated from each other by regions with the drain area extending parallel and connected at the opposite ends thereof to a second closed region with the drain area forming a device outer peripheral edge. A sinker structure extends perpendicularly to the substrate and may be formed by a grid of sinkers located below both the first parallel regions and the second closed region.

  • POWER ELECTRONIC SWITCHING SYSTEM

    An exemplary power-electronic switching system has a plurality of switching units, wherein each switching unit includes a housing and at least one switching module which is arranged within the housing. A mounting unit has a holding apparatus, on which the housings of the switching units are arranged. The holding apparatus includes an insulation material for electrically insulating the holding apparatus from the housings of the switching units and the housings of the switching units from one another. The insulation material allows the housings of the switching units of the switching system to have different voltage potentials from one another and additionally can be realized in a simple and space-saving manner and easily be assembled. In addition, the housing of each switching unit includes a material for at least partially shielding an electric and magnetic field.

  • POWER ELECTRONIC DEVICE AND AN ALIGNMENT DEVICE FOR THE POWER MODULE

    An alignment device for a power module of a power electronic device is provided, which may be used for aligning the power module while the power module being plugging to or from a rear mounting part of a cabinet of the power electronic device. The rear mounting part is disposed at an inner side of a back plate of the cabinet, the alignment device comprises a first connector disposed on the power module; guide rail units disposed on inner sides of a left side plate and a right side plate of the cabinet; a second connector disposed on the rear mounting part; and a guide device for limiting an offset of the power module moving along the guide rail unit.

  • APPARATUS AND METHOD FOR MANAGING POWER IN AN ELECTRONIC SYSTEM

    A power manager includes a converter and a controller. The converter is coupled between first and second energy storage devices, and the controller controls transfer of power between the first and second energy storage devices through the converter. The first energy storage device is to supply power to a first power subsystem of an electronic device, and the second energy storage device is to supply power to a second power subsystem of the electronic device. The subsystem may have different operating voltage requirements. When a level of the second battery falls below a first reference value, the controller controls the transfer of power from the first energy storage device to the second energy storage device. A transfer of power in a reverse direction may occur when a level of the first energy storage device falls below a second reference value.

  • SCALABLE-VOLTAGE CURRENT-LINK POWER ELECTRONIC SYSTEM FOR MULTI-PHASE AC OR DC LOADS

    An electronics power system includes a plurality of substantially identical power electronic modules. Each power electronic module includes a single-phase DC/AC inverter having an output side. Each power electronic module further includes a medium/high-frequency-isolated DC/DC current-to-voltage converter having an input side. The medium/high-frequency-isolated DC/DC current-to-voltage converter drives the single-phase DC/AC inverter. Each DC/DC converter and its corresponding DC/AC inverter are connected back-to-back sharing a common DC-link. The plurality of power electronics modules is stacked together in series at the input side and in parallel or series/parallel at the output side.

  • POWER ELECTRONIC DEVICES

    A semiconductor device or power electronic device is described. The device includes a pair of pole pieces, each having a profiled surface. A semiconductor body or wafer, preferably of wide bandgap electronic material, is located between the pole pieces and includes contact metallisation regions. The semiconductor body produces an electric field that emerges from an edge region. Passivation means includes a first or radially inner part in contact with the edge region of the semiconductor body and which diffuses the electric field as it emerges from the edge region and a second or radially outer part. The second part of the passivation is in contact with the first part and provides a substantially void-free interface with the profiled surface of each pole piece. The device may be immersed in a dielectric liquid.

  • PROVIDING POWER IN AN ELECTRONIC DEVICE

    To provide power to an electronic device, converter circuits include a first converter circuit having an input connected to a first power source, and a second converter circuit having an input connected to a second, different power source. A controller determines whether an overload condition of the first power source exists. In response to determining that the overload condition exists, the first and second converter circuits are activated.

  • SYSTEM AND METHOD FOR EMPLOYING SIDE TRANSITION TIMES FROM SIGNOFF-QUALITY TIMING ANALYSIS INFORMATION TO REDUCE LEAKAGEPOWER IN AN ELECTRONIC CIRCUIT AND AN ELECTRONIC DESIGN AUTOMATION TOOL INCORPORATING THE SAME

    The disclosure provides leakage power recovery that considers side transition times of multi-input cells. In one embodiment, a leakage power recovery system is disclosed that includes: (1) a power recovery module that considers side transitions when making a first conditional replacement of a cell in a path of a circuit design with a lower leakage cell and estimates delays and slack of the at least one path of the circuit design, and (2) a speed recovery module that makes a second conditional replacement of a slower lower leakage cell of the path with a higher leakage cell when there is a timing violation with respect to the path, determines if any other cells of the at least one path has a slower input transition and makes a third conditional replacement of a driver thereof to a higher leakage cell when the driver is one of the slower lower leakage cells.