Title:
POWER CONVERSION DEVICE AND VEHICLE HAVING SAME
Document Type and Number:
WIPO Patent Application WO/2020/022706
Kind Code:
A1
Abstract:
The present invention relates to a power conversion device and a vehicle having same. The power conversion device, according to one embodiment of the present invention, comprises: a direct-current power supply unit for outputting direct-current power; and a filter unit connected to a dc terminal which is an output terminal of the direct-current power supply unit. The filter unit may comprise: a first capacitor element of which one end is connected to one end of the dc terminal; a second capacitor element of which one end is connected to the other end of the dc terminal, and the other end is connected to the other end of the first capacitor element; first and second switching elements which are connected in series with each other and carry out a switching operation on the basis of a current flowing through at least one of the first and second capacitor elements; a third capacitor element connected between a gate terminal or a base terminal of the first switching element, and the other ends of the first and second capacitor elements; a fourth capacitor element connected between a gate terminal or a base terminal of the second switching element, and the other ends of the first and second capacitor elements; a fifth capacitor element connected between the first switching element and the one end of the dc terminal; and a sixth capacitor element connected between the second switching element and the other end of the dc terminal. Accordingly, common mode EMI noise, generated by the switching operation of the switching elements and flowing in the dc terminal along with a direct-current current, may be effectively reduced. In addition, various embodiments are possible.
Inventors:
KIM GEUNHOI (KR)
SHIN DONGIL (KR)
LEE SANGBONG (KR)
SHIN DONGIL (KR)
LEE SANGBONG (KR)
Application Number:
PCT/KR2019/008957
Publication Date:
January 30, 2020
Filing Date:
July 19, 2019
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H02M1/44; H02M1/00; H02M3/156
Foreign References:
| KR20170002447A | 2017-01-06 | |||
| KR20080005687A | 2008-01-15 | |||
| KR20120074585A | 2012-07-06 | |||
| US7518886B1 | 2009-04-14 | |||
| US9160228B1 | 2015-10-13 |
Attorney, Agent or Firm:
PARK, Byung Chang (KR)
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