图腾柱功率因数校正变换器中直流电流抑制的自适应方法

Enabled by improved wideband gap semiconductor devices, the bridgeless totem pole power factor correction (PFC) converter is becoming an increasingly popular topology for front end ac input of high power battery chargers and telecom power supplies, achieving high efficiency as well as low electromagnetic interference. Unlike the conventional boost PFC, in a totem pole structure, different circuits...