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A novel ZVZCSPWM full-bridge converter [Copy link]

Abstract: A novel zero-current zero-voltage switching (ZCZVS) PWM full-bridge converter is proposed. The soft switching of the converter is realized by adding an auxiliary circuit. Compared with the previous ZCZVSPWM full-bridge converter, the proposed novel converter has the advantages of simple circuit structure, high overall efficiency and adaptive adjustment of the current loop, which makes it particularly suitable for high-voltage and high-power applications. The working principle and circuit design of the converter are analyzed in detail, and experimentally verified on a communication switching power supply device with a power of 4kW and an operating frequency of 80kHz.

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