This paper proposes a modified predictive direct torque control (PDTC) application-specific\nintegrated circuit (ASIC) of a motor drive with a fuzzy controller for eliminating sampling and\ncalculating delay times in hysteresis controllers. These delay times degrade the control quality and\nincrease both torque and flux ripples in a motor drive. The proposed fuzzy PDTC ASIC calculates\nthe statorââ?¬â?¢s magnetic flux and torque by detecting the three-phase current, three-phase voltage,\nand rotor speed, and eliminates the ripples in the torque and flux by using a fuzzy controller and\npredictive scheme. The Verilog hardware description language was used to implement the hardware\narchitecture, and the ASIC was fabricated by the Taiwan Semiconductor Manufacturing Company\nthrough a 0.18-Ã?¼m1P6M CMOS process that involved a cell-based design method. The measurements\nrevealed that the proposed fuzzy PDTC ASIC of the three-phase induction motor yielded a test\ncoverage of 96.03%, fault coverage of 95.06%, chip area of 1.81 Ã?â?? 1.81 mm2, and power consumption\nof 296 mW, at an operating frequency of 50 MHz and a supply voltage of 1.8 V
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