公开(公告)号：US20240413745A1

公开(公告)日：2024-12-12

申请号：US18810063

申请日：2024-08-20

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Zhengang Song

IPC: H02M1/44 ,  H02J3/38 ,  H02M7/48 ,  H02M7/483

Abstract: A voltage converter includes a transformer, a primary-side circuit, and a secondary-side circuit. The primary-side circuit includes a switching transistor. The secondary-side circuit includes a first circuit loop and a second circuit loop. The first circuit loop includes a secondary-side winding of the transformer, a first switch unit, and a first energy storage unit. The second circuit loop includes a secondary-side winding of the transformer, the first energy storage unit, a second switch unit, and a second energy storage unit. When the switching transistor is turned on, the first switch unit is turned on and the second switch unit is not turned on; and when the switching transistor is turned off, the second switch unit is turned on and the first switch unit is not turned on.

公开(公告)号：US20230114612A1

公开(公告)日：2023-04-13

申请号：US18045731

申请日：2022-10-11

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Zhengang Song ,  Xiaofeng Yao

IPC: H02M7/5387

Abstract: An inverter and an inverter apparatus improves efficiency of the inverter while enabling an output voltage of the inverter to meet requirements of different devices. The inverter includes an input capacitor branch, a first bridge arm, a second bridge arm, a first inductor, a second inductor, a first capacitor, a second capacitor, and a freewheeling circuit. A first terminal of the first bridge arm is connected to a first terminal of the second bridge arm and a first terminal of the input capacitor branch. A second terminal of the first bridge arm is connected to a second terminal of the second bridge arm and a second terminal of the input capacitor branch. An intermediate node of the first bridge arm is connected to a first terminal of the second inductor. An intermediate node of the second bridge arm is connected to a first terminal of the first inductor.