Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
UNITARY CHARGING DEVICE FOR LOW AND HIGH VOLTAGES
Document Type and Number:
WIPO Patent Application WO/2021/251583
Kind Code:
A1
Abstract:
Disclosed is a unitary charging device for low and high voltages. According to a specific embodiment, one leg of a switching element of an insulated DC-DC converter, the secondary side of a high voltage transformer, and the primary side of a low voltage transformer are shared, and thus the number of switching elements of the charging device and gate drivers for operating the multiple switching elements can be reduced, reliability is improved, and the performance of the unitary charging device can improve even when the number of switching elements is reduced. Due to the shared use of an EMI filter and an input capacitor of a high voltage battery, not only can the price and volume of the charging device be decreased, but conduction loss and switching loss can also be reduced to increase efficiency.

Inventors:
CHOI SEWAN (KR)
YU GI BUM (KR)
Application Number:
PCT/KR2021/001383
Publication Date:
December 16, 2021
Filing Date:
February 02, 2021
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
FOUND RES & BUSINESS SEOUL NAT UNIV SCI & TECH (KR)
International Classes:
H02M3/28; H02J7/04
Foreign References:
KR20160038348A2016-04-07
JP6364553B22018-07-25
KR20160134277A2016-11-23
KR20120031131A2012-03-30
US20180222333A12018-08-09
Other References:
YU GIBUM, SUK CHAEYOUNG, KIM SUNJU, CHOI SEWAN: "OBC-LDC Integrated Charger with Entire ZVS Range using Common Leg", PROCEEDINGS OF THE KOREAN INSTITUTE OF POWER ELECTRONICS CONFERENCE, 20 August 2020 (2020-08-20), pages 94 - 96, XP055878768
Attorney, Agent or Firm:
LEE, Un Cheol (KR)
Download PDF: