Title:
WAKEUP DETECTION CIRCUIT, BATTERY MANAGEMENT SYSTEM AND BATTERY PACK
Document Type and Number:
WIPO Patent Application WO/2023/130267
Kind Code:
A1
Abstract:
Provided in the embodiments of the present application are a wakeup detection circuit, a battery management system and a battery pack. The wakeup detection circuit comprises a first module and a second module. The first module is electrically connected to an access impedance and a control unit, and generates a first signal in response to the access impedance being less than an upper threshold value of the access impedance, such that the control unit enters a wakeup state. The access impedance is configured to be electrically connected between an output end of a battery pack and the first module. The second module is electrically connected to the first module and the control unit. In response to the control unit entering a non-wakeup state or the control unit being in a non-wakeup state, the second module receives a fourth signal sent by the control unit. The fourth signal is used for reducing the upper limit threshold value of the access impedance. By means of the embodiments of the present application, the possibility of a control unit being woken up by a large access impedance by mistake is reduced.
Inventors:
LEI YU (CN)
Application Number:
PCT/CN2022/070354
Publication Date:
July 13, 2023
Filing Date:
January 05, 2022
Export Citation:
Assignee:
DONGGUAN POWERAMP TECH LIMITED (CN)
International Classes:
H01M10/44; H02J7/00
Foreign References:
| CN113675919A | 2021-11-19 | |||
| CN112895924A | 2021-06-04 | |||
| CN111806297A | 2020-10-23 | |||
| CN210941656U | 2020-07-07 | |||
| CN113328453A | 2021-08-31 | |||
| US6545447B1 | 2003-04-08 | |||
| US20160179126A1 | 2016-06-23 |
Attorney, Agent or Firm:
BEIJING HEADSTAY INTELLECTUAL PROPERTY AGENCY (CN)
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