본 발명의 일 실시예에 따르면, 양단이 각각 고전압 배터리 및 저전압 배터리와 연결되고, 무손실 스너버 회로를 포함하는 양방향 LDC(Low DC-DC Converter)에 있어서, 제1동기 정류 스위치 및 제2동기 정류 스위치 중 어느 하나가 온 동작 시 상기 저전압 배터리와 연결되는 저전압단의 전압을 승압하여 상기 고전압 배터리와 연결되는 고전압단으로 전송하고, 상기 제1동기 정류 스위치 및 상기 제2동기 정류 스위치가 오프 동작 시 상기 무손실 스너버 회로의 제1스위치를 온 동작하여 전압 클램핑 동작 및 환류 동작을 수행한다.
According to an embodiment of the present disclosure, provided is a bidirectional LDC (Low DC-DC Converter) having opposite ends connected to a high voltage battery and a low voltage battery, respectively, and comprising a lossless snubber circuit, wherein, when any one of a first synchronous rectifier and a second synchronous rectifier is turned on, a voltage of a low voltage side connected to the low voltage battery is stepped up and transmitted to a high voltage side connected to the high voltage battery. When the first synchronous rectifier and the second synchronous rectifier are turned off, a first switch of the lossless snubber circuit is turned on to perform a voltage clamping operation and a freewheeling operation.
LDC LDC LDC Bidirectional Low DC-DC Converter including lossless snubber circuit the control method of bidirectional LDC and bidirectional LDC system
무손실 스너버 회로를 포함하는 양방향 LDC, 양방향 LDC의 제어방법 및 양방향 LDC 시스템
25.06.2024
Patent
Elektronische Ressource
Koreanisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
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