Title:
DIRECT CURRENT/DIRECT CURRENT CONVERTER AND CONTROL METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/114463
Kind Code:
A1
Abstract:
According to an embodiment, provided is a direct current/direct current converter comprising: a first switch unit located between a direct current link capacitor and a bridge circuit unit; a second switch unit connected in parallel with the first switch unit; a sensing unit for sensing a voltage across both ends of an inverter and a voltage across both ends of a second switch; and a control unit which controls an on-off operation of the first switch unit and the second switch unit, and determines whether a short circuit or a disconnection occurs by using the voltage across both ends of the inverter and the voltage across both ends of the second switch unit, wherein the control unit determines whether a short circuit or a disconnection occurs by using a voltage across both ends of the inverter and a voltage across both ends of the second switch unit, which are measured when the first switch unit is in an on state and the second switch unit is in an off state, and determines whether a disconnection occurs by using a voltage across both ends of the inverter, which is measured when the second switch unit is in an on state and the first switch unit is in an off state.
Inventors:
PARK HEO KYOUNG (KR)
LEE MIN JAE (KR)
JUNG DA UL (KR)
LEE MIN JAE (KR)
JUNG DA UL (KR)
Application Number:
PCT/KR2021/011655
Publication Date:
June 02, 2022
Filing Date:
August 31, 2021
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
H02M1/32; H02H1/00; H02H7/12; H02J3/32; H02M1/00; H02M1/14; H02M3/00
Foreign References:
| JP2018148674A | 2018-09-20 | |||
| KR20180128155A | 2018-12-03 | |||
| JP2017169264A | 2017-09-21 | |||
| KR20200099267A | 2020-08-24 | |||
| US20110175662A1 | 2011-07-21 |
Attorney, Agent or Firm:
DANA PATENT LAW FIRM (KR)
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