一种用于降低导通损耗的新型整流器双变压器移相全桥变换器

A two-transformer phase-shift full-bridge (PSFB) converter has features of zero-voltage switching (ZVS) capability, clamped voltage stress of the primary switches, and small RMS current. However, when a wide input voltage range is required, the two-transformer PSFB converter operates with extended freewheeling mode. As a result, a large freewheeling current is reflected on the primary side, and it...