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Patent Searching and Data


Title:
WIRELESS CHARGING RECEIVING END, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/081698
Kind Code:
A1
Abstract:
Disclosed are a wireless charging receiving end and an electronic device. The receiving end comprises a switch module and at least two radio conversion units. Each radio conversion unit is used for converting an alternating magnetic field emitted by a wireless charging emitting end into a voltage, and the voltage obtained by means of conversion is used for forming an output voltage. The switch module is coupled to the at least two radio conversion units, and is used for changing a connection mode between the radio conversion units to change the output voltage. The connection mode between the radio conversion units comprises series connection, parallel connection, partial series connection, partial parallel connection, or a single radio conversion unit operating. When the connection mode between the radio conversion units is switched under the action of the switch module, the output voltage can be changed, thereby achieving voltage reduction. In the present application, voltage reduction is achieved by changing the connection mode of a rectifier or a receiving coil, without using a first-level voltage reduction module, thereby reducing the costs of an integrated circuit board.

Inventors:
HU ZHANGRONG (CN)
WEI WEI (CN)
HENG CAOFEI (CN)
Application Number:
PCT/CN2019/113648
Publication Date:
May 06, 2021
Filing Date:
October 28, 2019
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H02J50/12; H02J7/02
Foreign References:
CN107994684A2018-05-04
CN108695948A2018-10-23
CN107248773A2017-10-13
CN106571665A2017-04-19
US20140152117A12014-06-05
Attorney, Agent or Firm:
SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)
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