Abstract

This paper presents the design and implementation of a digital carrier-based pulse width modulation (PWM) generator for matrix AC-AC converter in inductive power transfer (IPT) systems using field-programmable gate array (FPGA). The design consumes a small fraction of the hardware resource of a medium-sized FPGA, and can be then incorporated as a part of a large control unit in IPT applications. The PWM generator is developed on a SmartFusion ARM-based mixed-signal FPGA controller, and experimental verifications have been given to illustrate the performance of the proposed PWM generator.

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