Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD AND SYSTEM FOR CONSTRUCTING DRIVER CIRCUIT OF WIRELESS CHARGING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/024688
Kind Code:
A1
Abstract:
The present invention specifically relates to the field of wireless charging. Disclosed are a method and system for constructing a driver circuit of a wireless charging system. The method comprises: calculating a negative bridge arm crosstalk voltage of another SiC MOSFET complementary to one SiC MOSFET when the SiC MOSFET in a bridge arm crosstalk analysis topology is turned off, the bridge arm crosstalk analysis topology comprising a direct current power supply, a high frequency inverter, a primary side compensation capacitor, a loose coupling transformer, a secondary side compensation capacitor, a rectifier, and a load which are connected in sequence; the high frequency inverter comprising four SiC MOSFET structures; and setting a forward bridge arm crosstalk voltage of another SiC MOSFET complementary to one SiC MOSFET to zero when the SiC MOSFET is turned off, and constructing a driver circuit of a wireless charging system according to the negative bridge arm crosstalk voltage. According to the present invention, the complexity of the circuit can be reduced, and the reliability of driving power supply is improved.

Inventors:
WANG LIFANG (CN)
BO QIANG (CN)
ZHANG YUWANG (CN)
TAO CHENGXUAN (CN)
LI FANG (CN)
Application Number:
PCT/CN2022/101704
Publication Date:
March 02, 2023
Filing Date:
June 28, 2022
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
INST ELECTRICAL ENG CAS (CN)
International Classes:
H02M3/335
Foreign References:
CN113708639A2021-11-26
CN112421797A2021-02-26
CN112491253A2021-03-12
CN110492728A2019-11-22
CN111342642A2020-06-26
CN108880206A2018-11-23
US20090185398A12009-07-23
Other References:
BO QIANG; WANG LI-FANG; ZHANG YU-WANG; GUO YAN-JIE: "Crosstalk Characteristics of SiC MOSFET-based Wireless Charging Systems", POWER ELECTRONICS, ZHONGGUO DIANGONG JISHU XUEHUI DIANLI DIANZI XUEHUI, CN, vol. 55, no. 12, 31 December 2021 (2021-12-31), CN , pages 87 - 90,109, XP009543766, ISSN: 1000-100X
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
Download PDF: