公开(公告)号：US20230139265A1

公开(公告)日：2023-05-04

申请号：US17940762

申请日：2022-09-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hui CHEN ,  Yanhui FU ,  Le CHU ,  Maobo GUO

IPC: H02J7/00 ,  H02H9/04

Abstract: A discharge circuit includes a first branch configured to be connected to a protected unit and a second branch connected in parallel to the first branch. The first branch includes a first overvoltage protection device configured to passively discharge a surge voltage. The second branch includes a second overvoltage protection device and a control switch connected in series. The control switch is configured to be connected to a control unit, and to be opened or closed based on a control signal of the control unit.

公开(公告)号：US20220255546A1

公开(公告)日：2022-08-11

申请号：US17732569

申请日：2022-04-29

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Jirong HUO ,  Yanhui FU ,  Changjian LIU ,  Le CHU

IPC: H03K17/28 ,  B60L58/10

Abstract: Embodiments of this application relate to the field of electricity, and disclose a drive circuit. In some embodiments of this application, the drive circuit includes a high-side driver module and a delay module, the delay module is configured to output a delay signal of preset duration to the high-side driver module in a case that a control module is being reset; and the high-side driver module is configured to: according to the delay signal of preset duration, remain in a first state within the preset duration, the first state being the same as a second state; where the second state is a working state of the high-side driver module before the control module is reset, and the second state includes being on or off.

公开(公告)号：US20200251918A1

公开(公告)日：2020-08-06

申请号：US16671360

申请日：2019-11-01

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yanhui FU ,  Qidong LOU ,  Xinxin JIANG ,  Qiandeng LI

IPC: H02J7/00

Abstract: The present disclosure provides a control system, comprising a controller and a plurality of power regulating modules; the plurality of power regulating modules comprise at least one first power regulating module and at least one second power regulating module, the first power regulating module is woken up upon receiving an external wake-up signal, the controller is connected to an output end of one of the first power regulating modules, and an output end of the second power regulating module is connected to a load module; the controller is further connected to a wake-up end of the second power regulating module; the first power regulating module connected to the controller supplies power to the controller; the at least one second power regulating module is woken up upon receiving an internal wake-up signal sent by the powered on controller or upon receiving the external wake-up signal.

公开(公告)号：US20200088778A1

公开(公告)日：2020-03-19

申请号：US16519127

申请日：2019-07-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuqun ZENG ,  Kai WU ,  Jirong HUO ,  Le CHU ,  Yanhui FU ,  Qiandeng LI

IPC: G01R31/00 ,  H02H1/00

Abstract: Disclosed are a load state detection circuit and method. A microcontroller is connected to a switch unit which is connected between a detecting power supply and a load to be tested. A voltage sampling point is formed at either terminal of the load to be tested, and the voltage sampling circuit is connected between the voltage sampling point and the microcontroller. The voltage sampling circuit is configured to sample a voltage at the voltage sampling point. The microcontroller is configured to connect the load to be tested and the detecting power supply by controlling the switch unit, and determine whether a fault exists in the load to be tested according to a received voltage at the voltage sampling point sampled by the voltage sampling circuit, before connecting the load to be tested with the drive power supply.