The present invention relates to a relay device and an electric vehicle charging controller comprising the same. According to an embodiment of the present invention, the relay device comprises: a relay unit in which a switch operates according to a voltage applied to a coil; a first control unit for controlling the voltage applied to the coil by turning on and off a first switching element according to a first control signal; a first discharge unit for discharging a counter electromotive force generated in the coil when the relay unit is turned off; a second discharge unit; and a second control unit including a second switching element and controlling the counter electromotive force to be discharged through the first or second discharge unit by turning the switching element on and off according to the second control signal.
본 발명의 실시예에 따른 릴리에 장치는 코일에 인가되는 전압 크기에 따라 스위치가 동작하는 릴레이부; 제1 제어 신호에 따라 제1 스위칭 소자를 온오프시켜 상기 코일에 인가되는 전압을 제어하는 제1 제어부; 상기 릴레이부의 턴오프(turn off)시 상기 코일에 발생하는 역기전력을 방전시키는 제1 방전부; 및 제2 방전부; 그리고 제2 스위칭 소자를 포함하고, 제2 제어 신호에 따라 상기 스위칭 소자를 온오프시켜 상기 제1 방전부 또는 제2 방전부를 통해 상기 역기전력이 방전되도록 제어하는 제2 제어부;를 포함한다.
RELAY DEVICE AND ELECTRIC VEHICLE CHARGING CONTROLLER COMPRISING THE SAME
릴레이 장치 및 이를 포함하는 전기 자동차 충전 컨트롤러
2021-08-19
Patent
Electronic Resource
Korean
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