Totem pole bridgeless power factor correction soft switch control device and method

摘要

Disclosed are a totem-pole bridgeless power factor correction (PFC) soft switch control device and method, wherein, the device includes a totem pole bridgeless PFC circuit, and the totem pole bridgeless PFC circuit includes at least two bridge arms connected in parallel between a first connecting point and a second connecting point: the first bridge arm includes two switches or diodes connected in serial in a same direction, the second bridge arm includes two switches that are connected in serial in the same direction, the totem pole bridgeless PFC circuit includes at least one PFC inductor, and further a filter capacitor and a load connected in parallel between the first connecting point and the second connecting point.