Additive and low-temperature printing processes enable the integration of diverse electronic\ndevices, both power-supplying and power-consuming, on flexible substrates at low cost. Production\nof a complete electronic system from these devices, however, often requires power electronics to\nconvert between the various operating voltages of the devices. Passive componentsââ?¬â?inductors,\ncapacitors, and resistorsââ?¬â?perform functions such as filtering, short-term energy storage, and\nvoltage measurement, which are vital in power electronics and many other applications. In this\npaper, we present screen-printed inductors, capacitors, resistors and an RLC circuit on flexible plastic\nsubstrates, and report on the design process for minimization of inductor series resistance that\nenables their use in power electronics. Printed inductors and resistors are then incorporated into a\nstep-up voltage regulator circuit. Organic light-emitting diodes and a flexible lithium ion battery are\nfabricated and the voltage regulator is used to power the diodes from the battery, demonstrating\nthe potential of printed passive components to replace conventional surface-mount components in a\nDC-DC converter application.
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