Title:
WIRELESS CHARGING CIRCUIT, CHARGING DEVICE, AND DEVICE TO BE CHARGED
Document Type and Number:
WIPO Patent Application WO/2022/001202
Kind Code:
A1
Abstract:
Provided are a wireless charging circuit, a charging device, and a device to be charged. The wireless charging circuit comprises a transmitter circuit (501), a rectifying circuit (502) and an inverter circuit (503), wherein an output end of the rectifying circuit (502) is connected to an input end of the inverter circuit (503), and an output end of the inverter circuit (503) is connected to the transmitter circuit (501); the transmitter circuit (501) comprises a first transmitting coil (501a) and a second transmitting coil (501b), with the first transmitting coil (501a) and the second transmitting coil (501b) being connected in series, and each of the first transmitting coil (501a) and the second transmitting coil (501b) comprising a cylindrical magnetic core and a wire wound onto the cylindrical magnetic core; and the charging device and the device to be charged are provided with the wireless charging circuit. Adaptation thereof to a narrow space or an irregular space can thus be achieved without reducing the charging performance.
Inventors:
ZHENG SHUAI (CN)
PEI CHANGSHENG (CN)
PEI CHANGSHENG (CN)
Application Number:
PCT/CN2021/081550
Publication Date:
January 06, 2022
Filing Date:
March 18, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H01F38/14; H02J50/10; H02J7/02; H02J50/40
Foreign References:
| CN103262188A | 2013-08-21 | |||
| US20170288444A1 | 2017-10-05 | |||
| CN1604437A | 2005-04-06 | |||
| CN102957214A | 2013-03-06 | |||
| US20140247007A1 | 2014-09-04 | |||
| EP3282539A1 | 2018-02-14 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO.,LTD. (CN)
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