Development of Low-Noise and Low-Distortion Techniques for High frequency PWM Inverters Using Next Generation Switching Devices

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This study has develop low-noise and low-distortion techniques for high frequency PWM inverters using next generation switching devices, such as SiC and GaN. The developed dead-time compensation can almost completely compensate the voltage distortion without restriction of pulse width. A common-noise canceller, which has proposed by the project leader, is applied to the high frequency (100kHz) PWM inverter, and it is demonstrated that core weight is reduced to 1/8, compared with conventional one.