Title:
THREE-PHASE AND SINGLE-PHASE TWO-WAY CHARGER
Document Type and Number:
WIPO Patent Application WO/2022/181906
Kind Code:
A1
Abstract:
The present technology discloses a three-phase and single-phase two-way charger. According to a specific example of the present invention, a battery charger having a single-stage structure for a combined use of single-phase and three-phase is implemented without an electrolytic capacitor which lowers the reliability and charging efficiency, to enable a compatible use of single-phase and three-phase external power sources, and to improve charging efficiency and the performance in a wide input/output voltage range by a reduced number of switching elements and a soft switching operation of the switching elements and thus improve the reliability and lifetime. A lightweight charger can be realized by integrating, into a core, at least two of an inductor for removing ripples of the battery charger, a primary side and a secondary side of a transformer, and an inductor for removing noise.
Inventors:
CHOI SE WAN (KR)
Application Number:
PCT/KR2021/011039
Publication Date:
September 01, 2022
Filing Date:
August 19, 2021
Export Citation:
Assignee:
FOUND RES & BUSINESS SEOUL NAT UNIV SCI & TECH (KR)
International Classes:
H02J7/02; B60L53/24; B60L53/60; H01F17/04; H01F27/34; H02M1/00; H02M1/14; H02M7/23
Foreign References:
| KR20190115364A | 2019-10-11 | |||
| KR102088580B1 | 2020-03-12 | |||
| KR101462719B1 | 2014-11-17 | |||
| JP2013519350A | 2013-05-23 | |||
| JP6031222B2 | 2016-11-24 |
Other References:
KIM SUNJU, LEE JAEYEON, YU GIBUM, CHOI SEWAN: "Single-phase/Three-phase Compatible E-capless 11kW 800V EV Charger with DC charging", PROCEEDINGS OF THE KOREAN INSTITUTE OF POWER ELECTRONICS CONFERENCE, 18 August 2020 (2020-08-18), pages 163 - 165, XP055962124
Attorney, Agent or Firm:
LEE, Un Cheol (KR)
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