Title:
ISOLATED TYPE ACTIVE EMI FILTER HAVING NO ADDITIONAL ELEMENTS ON POWER LINE
Document Type and Number:
WIPO Patent Application WO/2019/212258
Kind Code:
A1
Abstract:
The present invention relates to an EMI filter for preventing noise emitted from a power line cable. An isolated type active EMI filter having no elements added to a power line comprises: a common mode choke disposed on a power supply side; an Y-cap disposed on an EMI source side; a sensing coil for sensing an electric current; an amplification unit for amplifying a noise current; and a transformer for injecting a signal of a secondary coil into the Y-cap as a compensation signal.
Inventors:
KIM JIN GOOK (KR)
JEONG SANG YEONG (KR)
SHIN DONG IL (KR)
JEONG SANG YEONG (KR)
SHIN DONG IL (KR)
Application Number:
PCT/KR2019/005268
Publication Date:
November 07, 2019
Filing Date:
May 02, 2019
Export Citation:
Assignee:
ULSAN NAT INST SCIENCE & TECH UNIST (KR)
International Classes:
H02M1/44; H02J3/01; H03H1/00
Domestic Patent References:
| WO2013008925A1 | 2013-01-17 |
Foreign References:
| KR20010070924A | 2001-07-27 | |||
| KR20050013647A | 2005-02-04 | |||
| KR20120053606A | 2012-05-29 | |||
| CN102714469A | 2012-10-03 |
Attorney, Agent or Firm:
Y.P.LEE, MOCK & PARTNERS (KR)
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