The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 2025
Filed:
Aug. 31, 2021
Lg Innotek Co., Ltd., Seoul, KR;
LG INNOTEK CO., LTD., Seoul, KR;
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.