Title:
CHARGING CIRCUIT, CHIP AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/199219
Kind Code:
A1
Abstract:
A charging circuit, a chip and a device. The charging circuit comprises: a magnetic induction circuit, a rectifying circuit, a switch circuit and a boost circuit, wherein an output end of the magnetic induction circuit is connected to an input end of the rectifying circuit; and the switch circuit is respectively connected to the rectifying circuit and the boost circuit. The magnetic induction circuit receives an electromagnetic signal sent by a transmitting end, and generates an alternating current according to the electromagnetic signal; the rectifying circuit converts the alternating current into a direct current; and the switch circuit switches on a path between the rectifying circuit and the boost circuit, so that the boost circuit boosts an output voltage of the magnetic induction circuit. In the solution, a switch circuit is controlled to switch on the path between a rectifying circuit and a boost circuit, such that the boost circuit is charged, so as to boost an output voltage of a charging circuit, and the boosted output voltage can ensure that a chip in which the charging circuit is located is started, thereby solving the problem of it not being possible to charge a device in which the charging circuit is located due to the fact that the chip in which the charging circuit is located cannot be started caused by the charging circuit being undervoltage.
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Inventors:
QU CHUNYING (CN)
WAN SHIMING (CN)
WAN SHIMING (CN)
Application Number:
PCT/CN2022/070889
Publication Date:
September 29, 2022
Filing Date:
January 10, 2022
Export Citation:
Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
International Classes:
B60L53/00; H02J50/10; H02J7/02
Foreign References:
| CN113162245A | 2021-07-23 | |||
| CN207234532U | 2018-04-13 | |||
| CN212305139U | 2021-01-05 | |||
| CN205583799U | 2016-09-14 | |||
| CN107147199A | 2017-09-08 | |||
| JP2011250555A | 2011-12-08 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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