公开(公告)号：US09800140B2

公开(公告)日：2017-10-24

申请号：US15003143

申请日：2016-01-21

Applicant: DELTA ELECTRONICS, INC.

Inventor： Sheng-Yu Wen ,  Cheng-Yi Lin ,  Chien-Yu Lo

IPC: H02M1/42

CPC classification number: H02M1/4233 ,  H02M1/42 ,  H02M1/4208 ,  Y02B70/126

Abstract: A high efficiency bridgeless power factor correction converter includes a power factor correction control unit, a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a sixth switch, a first inductor, a second inductor and a bulk capacitor. The power factor correction control unit is configured to turn on or turn off the first switch, the second switch, the third switch, the fourth switch, the fifth switch and the sixth switch, so that the high efficiency bridgeless power factor correction converter converts an input alternating current voltage into an output direct current voltage.