Title:
EMI FILTER, MOTOR DRIVE SYSTEM AND ELECTRIC OIL PUMP
Document Type and Number:
WIPO Patent Application WO/2021/243613
Kind Code:
A1
Abstract:
An electromagnetic interference (EMI) filter, includes: a first input terminal and a second input terminal configured to be coupled to an external power source; a first output terminal and a second output terminal, wherein a first conductive path is defined between the first input terminal and the first output terminal, and a second conductive path is defined between the second input terminal and the second output terminal; a first X-capacitor unit, a common mode choke and a Y-capacitor unit connected between the first conductive path and the second conductive path; and a differential mode choke connected in the first conductive path; wherein the first X-capacitor unit and the common mode choke are electrically closer to the first and second input terminals than the differential mode choke.
Inventors:
XIANG YOUQING (CN)
LIU GENG (CN)
HONG XIAOYUAN (CN)
QIU WUFENG (CN)
ZHENG NAN (CN)
YIN JIANFENG (CN)
LIU GENG (CN)
HONG XIAOYUAN (CN)
QIU WUFENG (CN)
ZHENG NAN (CN)
YIN JIANFENG (CN)
Application Number:
PCT/CN2020/094230
Publication Date:
December 09, 2021
Filing Date:
June 03, 2020
Export Citation:
Assignee:
JOHNSON ELECTRIC GUANGDONG CO LTD (CN)
International Classes:
H02M1/14; H02M1/44
Foreign References:
| CN201435604Y | 2010-03-31 | |||
| CN107482896A | 2017-12-15 | |||
| CN103368377A | 2013-10-23 | |||
| CN110829375A | 2020-02-21 | |||
| CN203399068U | 2014-01-15 | |||
| EP2365621A1 | 2011-09-14 |
Attorney, Agent or Firm:
SHINY INTELLECTUAL PROPERTY FIRM (CN)
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