Title:
CURRENT EQUALIZATION CIRCUIT AND METHOD BASED ON DDQ MAGNETIC STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2019/085517
Kind Code:
A1
Abstract:
The present invention relates to the technical field of wireless charging, and in particular, to a current equalization circuit and method based on a DDQ magnetic structure. The current equalization circuit comprises a first current equalization circuit associated with a DD coil and a second current equalization circuit associated with a Q coil, wherein the first current equalization circuit and the second current equalization circuit control the respective output current values thereof to maintain the deviation of two groups of output currents within a set range. The present invention solves the problem that an output current of a DDQ magnetic structure is uneven, and can improve the charging efficiency and the charging power; and on the basis of wireless charging of an automobile, the power transmission magnitude and efficiency in the presence of a positional offset can be improved.
Inventors:
CHEN XIAOYU (CN)
TAN GUANGZHI (CN)
TAN GUANGZHI (CN)
Application Number:
PCT/CN2018/092383
Publication Date:
May 09, 2019
Filing Date:
June 22, 2018
Export Citation:
Assignee:
NIO NEXTEV LTD (CN)
International Classes:
H02J7/00
Foreign References:
| CN103733460A | 2014-04-16 | |||
| CN104283505A | 2015-01-14 | |||
| CN207410075U | 2018-05-25 | |||
| CN201234205Y | 2009-05-06 | |||
| CN101527501A | 2009-09-09 | |||
| US20050093523A1 | 2005-05-05 |
Other References:
See also references of EP 3706277A4
Attorney, Agent or Firm:
HUAHE IP LIMITED (CN)
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