摘要
综述了几种新型的零电压(ZVS)DC/DC变换器,并分析了变换器的优缺点,研究了一种新型MOSFET作为开关器件的三电平ZVS变换器,并分析了这种变换器一个周期的工作状态。该变换器用耦合电感代替常规电感,耦合电感通过变压器反射到原边,使变换器在零状态时的环流减小到零,实现了外管零电压开通,内管零电流关断。由于不存在一次侧环流,减小了通态损耗。
Some type of DC to DC converter are introduced, and their advantages and disadvantages are analysised. A three-level zero-voltage switching （ZVS） MOSFET converter was studied. A coupled inductor was used to substitute inductor, so that the circulating current in the zero state could be zero. The converter realizes zero-current tuning off for inner switching, and zero-voltage tuning on for outer switching. No circulating current exist in zero sate, so that the losses in on-state was decreased.
出处
《电源技术应用》
2007年第6期16-20,共5页
Power Supply Technologles and Applications
