Title:
PROTECTION CIRCUIT, STARTING POWER SUPPLY DEVICE, AND BATTERY CLIP DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/010530
Kind Code:
A1
Abstract:
The present application provides a protection circuit, a starting power supply device, and a battery clip device. The protection circuit comprises a power supply connection end, a load connection end, a switch module, a sampling module, and a short circuit detection module. The switch module and the sampling module are connected between the power supply connection end and the load connection end, wherein the sampling module is configured to sample a first electrical signal at a preset position between the power supply connection end and the load connection end. The short circuit detection module is configured to obtain the first electric signal, and to generate a first control signal in response to the first electrical signal being greater than a first preset electrical signal threshold, wherein the first control signal is used for causing the switch module to disconnect the connection between the power supply connection end and the load connection end. The protection circuit controls, according to the first electrical signal, the switch module to be turned off or continuously turned on, such that a current output loop of the protection circuit can be disconnected timely in rapid response to a short circuit fault, thereby achieving a good protection effect.
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Inventors:
LEI YUN (CN)
ZHANG ZHIFENG (CN)
LIN JIANPING (CN)
ZHANG ZHIFENG (CN)
LIN JIANPING (CN)
Application Number:
PCT/CN2021/111195
Publication Date:
February 09, 2023
Filing Date:
August 06, 2021
Export Citation:
Assignee:
SHENZHEN CARKU TECH CO LIMITED (CN)
International Classes:
H02H3/08; H02H7/18
Foreign References:
| CN112366788A | 2021-02-12 | |||
| CN112366789A | 2021-02-12 | |||
| CN112366791A | 2021-02-12 | |||
| CN112366787A | 2021-02-12 | |||
| CN112366790A | 2021-02-12 | |||
| CN102903580A | 2013-01-30 | |||
| CN113474965A | 2021-10-01 | |||
| US8004242B1 | 2011-08-23 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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