• 제목/요약/키워드: DM(Differential Mode) coupled inductor

검색결과 2건 처리시간 0.018초

커플드 인덕터를 적용한 고효율 2상 인터리브드 벅 컨버터 설계 (High Efficiency Two-Phase Interleaved Buck Converter with Coupled Inductor Design)

  • 강현지;김진우;이성민;조영훈
    • 전력전자학회논문지
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    • 제25권5호
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    • pp.350-357
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    • 2020
  • This study presents the design of an 18 kW two-phase interleaved buck converter that uses a coupled inductor for an electric vehicle rapid charger. The designs of a two-phase coupled inductor for current ripple and physical size reduction and a two-phase interleaved buck converter based on silicon carbide metal - oxide - semiconductor field-effect transistor for high efficiency were described in detail. The operating principle of the two-phase interleaved buck converter was analyzed, and the coupled inductor was investigated using a magnetized equivalent circuit. Simulation and experiments were conducted to verify the validity of the proposed two-phase interleaved buck converter, and the theoretical design method and experimental results were confirmed.

하이브리드 자동차용 HDC를 위한 50kW급 고전력밀도 양방향 컨버터 (High Power Density 50kW Bi-directional Converter for Hybrid Electric Vehicle HDC)

  • 양정우;금문환;최윤;한상규;김석준;김삼균;김종필;사공석진
    • 전력전자학회논문지
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    • 제21권2호
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    • pp.95-101
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    • 2016
  • This paper proposed a high-power density bidirectional converter for hybrid electric vehicle high-voltage DC-DC converter(HDC). The conventional HDC has two disadvantages. First, large inductance is required to satisfy the ripple current of inductor by low switching frequency (<20 kHz). Second, large core size is required to prevent the saturation of inductor by high current. Compared with the conventional HDC, the proposed HDC can reduce inductance with SiC-FET for high frequency driving. High-power density of I/O capacitors can be achieved through two-phase interleaved method. The high-power density of inductors can be achieved because the offset current of magnetizing inductance is theoretically terminated by using the differential mode coupled inductor instead of using two single inductors. The validity of the proposed converter is proved through the 50 kW prototype.