公开(公告)号：US20240405667A1

公开(公告)日：2024-12-05

申请号：US18697710

申请日：2022-04-25

Applicant: Sungrow Power Supply Co., Ltd.

Inventor： Hao Wang ,  Tengfei Wang ,  Jiangtao Xu ,  Jun Xu

IPC: H02M1/36 ,  H02J7/06 ,  H02M1/42 ,  H02M3/158

Abstract: An on-board charger, a DCDC converter and a control method are provided. The on-board charger includes a power factor corrector, a high-voltage direct-current converter, a low-voltage direct-current converter, and a controller. An input terminal of the high-voltage direct-current converter is connected to an output terminal of the power factor corrector. An input terminal of the low-voltage direct-current converter is connected to an output terminal of the high-voltage direct-current converter or the output terminal of the power factor corrector. An output terminal of the low-voltage direct-current converter is connected to a low-voltage battery and a low-voltage load. The low-voltage direct-current converter includes a main power transistor and a controllable switching transistor.