公开(公告)号：US20210336541A1

公开(公告)日：2021-10-28

申请号：US17366405

申请日：2021-07-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qiang XIE ,  Liang CHEN

IPC: H02M3/158 ,  H02M3/07 ,  H02M1/00

Abstract: The present disclosure discloses example DC-DC converters. One example DC-DC converter includes a first capacitor, a second capacitor, a switched capacitor SC circuit, and an inductor circuit. An input end of the SC circuit is coupled to a voltage input end, and an output end of the SC circuit is coupled to a voltage output end. The first capacitor and the second capacitor are sequentially connected in series between the voltage input end and the voltage output end. One end of the inductor circuit is selectively coupled between the first capacitor and the second capacitor or to a ground end, and the other end of the inductor circuit is coupled to the voltage output end.

公开(公告)号：US20140312862A1

公开(公告)日：2014-10-23

申请号：US14257627

申请日：2014-04-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiang XIE ,  Liang CHEN

IPC: H02M3/158

CPC classification number: H02M3/156 ,  H02M2001/0025

Abstract: The present invention is applicable to the field of direct current conversion, and provides a DC-DC converter. In the present invention, a DC-DC converter including a triangular wave generation module and a switch control module is adopted. The triangular wave generation module generates a triangular wave signal according to voltages at both ends of an energy storage inductor L1, and the switch control module outputs a control level according to its internally generated clock signal and the triangular wave signal to control a switching operation of a PMOS power tube and an NMOS power tube according to a preset switching frequency.

Abstract translation: 本发明可应用于直流转换领域，并提供一种DC-DC转换器。 在本发明中，采用包括三角波产生模块和开关控制模块的DC-DC转换器。 三角波产生模块根据能量存储电感器L1两端的电压产生三角波信号，并且开关控制模块根据其内部产生的时钟信号和三角波信号输出控制电平，以控制开关操作 PMOS功率管和NMOS功率管，根据预设的开关频率。