Title:
BATTERY CONTROL CIRCUIT, BATTERY AND RELATED ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/247754
Kind Code:
A1
Abstract:
Provided are a battery control circuit (102), a battery (10) and a related electronic device. The battery control circuit (102) is connected in parallel to the two ends, namely a positive electrode and a negative electrode, of a battery pack (101). The battery control circuit (102) comprises a first inductor (L1), a first switch tube (S1), a second switch tube (S2), a first diode (D1) and a second diode (D2), wherein both a first end of the first switch tube (S1) and a cathode of the first diode (D1) are coupled to the positive electrode of the battery pack (101), and a second end of the first switch tube (S1) is coupled to one end of the first inductor (L1) and a cathode of the second diode (D2); an anode of the first diode (D1) is coupled to the other end of the first inductor (L1) and a first end of the second switch tube (S2), and both a second end of the second switch tube (S2) and an anode of the second diode (D2) are coupled to the negative electrode of the battery pack (101); and the first switch tube (S1) and the second switch tube (S2) are turned on or turned off at the same time. By means of the battery control circuit (102), the energy of the battery pack (101) can be used to realize charging and discharging, and both a charging current and a discharging current generate Joule heat on an internal resistor of the battery pack (101), such that a battery (10) is heated, thereby achieving a high heating efficiency.
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Inventors:
CHEN BAOGUO (CN)
ZHU JIANHUA (CN)
ZHU JIANHUA (CN)
Application Number:
PCT/CN2022/094218
Publication Date:
December 01, 2022
Filing Date:
May 20, 2022
Export Citation:
Assignee:
HUAWEI DIGITAL POWER TECH CO LTD (CN)
International Classes:
H02J7/00; H01M10/615
Foreign References:
| CN113364084A | 2021-09-07 | |||
| CN203721843U | 2014-07-16 | |||
| US20090140693A1 | 2009-06-04 | |||
| CN109755688A | 2019-05-14 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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