A dual battery charging circuit is presented. A secondary circuit of the dual battery charging circuit proposed in the present invention comprises: a first rectifier diode (Ds1) of which an anode terminal is connected to a dot side of a first transformer (Ns1); a second rectifier diode (Ds2) of which an anode terminal is connected to an undot side of a second transformer (Ns2); an inductor (Lo) connected to one terminal to which cathodes of the first and second rectifier diodes (Ds1, Ds2) are commonly connected; a first switch (Ss1) and a third switch (Ss3), wherein a drain terminal of the first switch (Ss1) and a source terminal of the third switch (Ss3) are connected to the other terminal of the inductor (Lo); a second switch (Ss2) having a drain terminal connected to a source terminal of the first switch (Ss1), and having a source terminal connected to a common terminal of the first and second transformers (Ns1, Ns2); a second battery having a positive terminal connected to a drain terminal of the third switch (Ss3); and a first battery connected in series to the second battery, and having a negative terminal connected to a source terminal of a fourth switch (Ss4). The circuit has a plurality of charging modes according to on/off control of the first and second switches (Ss1, Ss2). The present invention can reduce a switching loss.

    듀얼 배터리 충전 회로가 제시된다. 본 발명에서 제안하는 듀얼 배터리 충전 회로의 2차측 회로는 제1 변압기(Ns1)의 도트(dot)측에 애노드 단자가 연결되는 제1 정류 다이오드(Ds1), 제2 변압기(Ns2)의 언도트(undot)측에 애노드 단자가 연결되는 제2 정류 다이오드(Ds2), 제1 정류 다이오드(Ds1) 및 제2 정류 다이오드(Ds2)의 캐소드가 공통으로 연결된 한 단자에 연결되는 인덕터(Lo), 인덕터(Lo)의 다른 한 단자에 드레인 단자가 연결되는 제1 스위치(Ss1)와 소스 단자가 연결되는 제3 스위치(Ss3), 제1 스위치(Ss1)의 소스 단자에 드레인 단자가 연결되고, 소스 단자는 제1 변압기(Ns1) 및 제2 변압기(Ns2)의 공통된 한 단자와 연결되는 제2 스위치(Ss2), 제3 스위치(Ss3)의 드레인 단자에 플러스 단자가 연결되는 제2 배터리 및 제2 배터리에 직렬로 연결되고, 마이너스 단자에 제4 스위치(Ss4)의 소스 단자가 연결되는 제1 배터리를 포함하고, 제1 스위치(Ss1) 및 제2 스위치(Ss2)의 온/오프 제어에 따른 복수의 충전 모드를 갖는다.


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    Title :

    Dual Battery Charger


    Additional title:

    듀얼 배터리 충전기


    Contributors:
    KIM JAE KUK (author) / LEE BOM SEOK (author) / AHN JAEHYUN (author)

    Publication date :

    2020-06-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    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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