Title:
ELECTRONIC DEVICE, WIRELESS POWER TRANSMISSION RECEIVER CIRCUIT, COMMUNICATION METHOD, AND WIRELESS POWER TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/125428
Kind Code:
A1
Abstract:
A wireless power transmission receiver circuit, a wireless power transmission system, an electronic device, and a communication method for a wireless power transmission receiver circuit. The wireless power transmission system comprises: an electrical energy-receiving oscillation circuit (10) comprising an electrical energy-receiving coil L2 and a compensation capacitor C2 connected in series, the electrical energy-receiving coil L2 sensing an alternating magnetic field and generating an induction current accordingly; a rectifier circuit (20) connected to two ends of the electrical energy-receiving oscillation circuit (10); and a modulation circuit (30) comprising multiple modulation sub-circuits (31, 32), each of the modulation sub-circuits (31, 32) being separately connected to the electrical energy-receiving oscillation circuit (10), and the modulation circuit (30) receiving a drive signal used to to select a modulation sub-circuit (31, 32) matching a power level of a load of the wireless power transmission receiver circuit (100) to operate, such that the modulation sub-circuits (31, 32) receive, during a communication process, a communication signal and load the communication signal on a carrier signal to perform modulation. The wireless power transmission receiver circuit (100) is provided with multiple modulation sub-circuits (31, 32) corresponding to various power levels, thereby reducing the bit error rate when the wireless power transmission receiver circuit (100) communicates with a wireless power transmission transmission circuit (200).
Inventors:
GU SHOULIANG (CN)
YIN KUNREN (CN)
ZUO YUANYANG (CN)
YU SANYING (CN)
HOU JUNFENG (CN)
YIN KUNREN (CN)
ZUO YUANYANG (CN)
YU SANYING (CN)
HOU JUNFENG (CN)
Application Number:
PCT/CN2019/123356
Publication Date:
June 25, 2020
Filing Date:
December 05, 2019
Export Citation:
Assignee:
GUANGDONG MIDEA WHITE HOME APPLIANCE TECH INNOVATION CENTER CO LTD (CN)
MIDEA GROUP CO LTD (CN)
MIDEA GROUP CO LTD (CN)
International Classes:
H02J50/12; H02J7/02; H02J50/90
Foreign References:
| CN109687600A | 2019-04-26 | |||
| CN203434667U | 2014-02-12 | |||
| CN104158304A | 2014-11-19 | |||
| CN108039894A | 2018-05-15 | |||
| US20050068019A1 | 2005-03-31 |
Attorney, Agent or Firm:
CHINA WISPRO INTELLECTUAL PROPERTY LLP. (CN)
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