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Technique for reducing rectifier reverse-recovery-related losses in high- voltage high power converters
Technique for reducing rectifier reverse-recovery-related losses in high- voltage high power converters
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机译:减少高压大功率转换器中与整流器反向恢复相关的损耗的技术
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摘要
A circuit technique that substantially reduces the boost- converter losses caused by the reverse-recovery characteristics of the rectifier is described. The losses are reduced by inserting an inductor in the series path of the boost switch and the rectifier to control the di/dt rate of the rectifier during its turn-off. The energy from the inductor after the boost switch turn-off is returned to the input or delivered to the output via an active snubber. The same technique can be extended to any member of the PWM-converter family.
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