Title:
DC-DC CONVERTER OF POWER CONVERSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/200103
Kind Code:
A1
Abstract:
A DC-DC converter according to an embodiment of the present invention comprises: a first stage converter for stepping up or stepping down an input voltage and outputting same; and a second stage converter connected to an output of the first stage converter. The first stage converter may comprise: first to fourth switches connected in series; fifth to eighth switches connected in series; a first capacitor connected in parallel with the series connection of the first and second switches; a second capacitor connected in parallel with the series connection of the third and fourth switches; a third capacitor connected in parallel with the series connection of the fifth and sixth switches; a fourth capacitor connected in parallel with the series connection of the seventh and eighth switches; a first inductor electrically connected to a first node between the first and second switches and a second node between the fifth and sixth switches; and a second inductor electrically connected to a third node between the third and fourth switches and a fourth node between the seventh and eighth switches.
Inventors:
BAE SUN HO (KR)
LEE JAE HO (KR)
LEE JAE HO (KR)
Application Number:
PCT/KR2023/002281
Publication Date:
October 19, 2023
Filing Date:
February 16, 2023
Export Citation:
Assignee:
LS ELECTRIC CO LTD (KR)
International Classes:
H02M3/158; H02J7/00; H02M1/00
Foreign References:
| KR101935452B1 | 2019-01-04 | |||
| KR20210009936A | 2021-01-27 | |||
| CN108233402B | 2021-03-09 | |||
| KR101031217B1 | 2011-04-27 | |||
| US9148065B2 | 2015-09-29 |
Attorney, Agent or Firm:
HAW, Yong Noke (KR)
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