Title:
CIRCUIT, POWER SUPPLY METHOD, ELECTRONIC DEVICE, AND COMPUTER PROGRAM PRODUCT
Document Type and Number:
WIPO Patent Application WO/2023/193646
Kind Code:
A1
Abstract:
Provided in the present application are a circuit, an electronic device, a power supply method and a computer program product, relating to the technical field of electronic devices. The electronic device at least comprises a battery, a working circuit and a boost circuit. When power is supplied to the working circuit by means of the battery, in response to the electronic device satisfying a low-temperature or low-voltage condition, power is supplied to the working circuit by means of the boost circuit. During the process of switching a power supply path, for ensuring that the working circuit does not lose power, the boost circuit first supplies power to the working circuit by means of a diode, and then a path by which the battery supplies power to the working circuit is turned off. Before the path by which the battery supplies power to the working circuit is turned off, the voltage of power supplied to the working circuit by the boost circuit via the diode is controlled not to be greater than the voltage of power supplied to the working circuit by the battery, thus reverse current is ensured not to flow from a boost circuit path to a battery path. In addition, by means of the diode of the boost path, reverse current is ensured not to flow from the battery path to the boost path.
Inventors:
YU WENCHAO (CN)
TAN RONGLONG (CN)
YE JIANBO (CN)
TAN RONGLONG (CN)
YE JIANBO (CN)
Application Number:
PCT/CN2023/084733
Publication Date:
October 12, 2023
Filing Date:
March 29, 2023
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H02J7/00
Domestic Patent References:
| WO2020019300A1 | 2020-01-30 | |||
| WO2018126790A1 | 2018-07-12 |
Foreign References:
| CN115001065A | 2022-09-02 | |||
| CN111049203A | 2020-04-21 | |||
| CN113078699A | 2021-07-06 | |||
| CN103181054A | 2013-06-26 |
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