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PWM technique for power MOSFET inverter

1988; Institute of Electrical and Electronics Engineers; Volume: 3; Issue: 3 Linguagem: Inglês

10.1109/63.17951

1941-0107

Kazuya Taniguchi, Y. Ogino, Hitoshi Irie,

Silicon Carbide Semiconductor Technologies

A sinusoidal PWM (pulsewidth-modulated) inverter suitable for use with power MOSFETs is described. The output waveforms in the proposed PWM inverter are investigated both theoretically and experimentally. A modulating signal for the three-phase PWM inverter is obtained by adding the harmonic components of integer multiples of three to the three-phase sine waves. By using the proposed modulating signal, the amplitude of the fundamental component is increased about 15% more than that of a conventional sine-wave inverter and the commutation number of the inverter is decreased to two-thirds of a conventional one. >