The present invention relates to an inverter for a vehicle for generating a resolver excitation signal to increase reliability of circuit design. According to the present invention, the inverter for a vehicle comprises: a controller (110) generating an input signal (V_ref1); and an excitation signal generator (121) generating an excitation signal (V_E1) corresponding to the input signal (V_ref1) input from the controller (110) to apply the excitation signal (V_E1) to a resolver (210) of a motor (200). The excitation signal generator (121) includes: a voltage divider generating a voltage-divided power supply voltage (Vcc); a first filter (121A) filtering the input signal (V_ref1); a first resistor (R1) receiving the input signal filtered by the first filter (121A); and an operational amplifier (OP) differentially amplifying the voltage-divided power supply voltage (Vcc) input through a non-inverting input terminal (+) and the filtered input signal (V_ref1) input through an inverting input terminal (-) via the first resistor (R1) to output the excitation signal (V_E1) through an output terminal (out).

    본 발명의 차량용 인버터는, 입력 신호(Vref1)를 생성하는 컨트롤러(110); 및 상기 컨트롤러(110)부터 입력된 상기 입력 신호(Vref1)에 대응하는 여자 신호(VE1)를 생성하여, 모터(200)의 레졸버(210)로 인가하는 여자 신호 생성기(121)를 포함한다. 그리고, 상기 여자 신호 생성기(121)는, 전압 분배된 전원 전압(Vcc)을 생성하는 전압 분배기; 상기 입력 신호(Vref1)를 필터링하는 제1 필터(121A); 상기 제1 필터(121A)에 의해 필터링된 입력 신호를 입력받는 제1 저항(R1); 및 비 반전 입력 단자(+)를 통해 입력되는 상기 전압 분배된 전원 전압(Vcc)과 상기 제1 저항(R1)을 거쳐 반전 입력 단자(-)를 통해 입력되는 상기 필터링된 입력 신호(Vref1)를 차동 증폭하여 출력 단자(out)를 통해 상기 여자 신호(VE1)를 출력하는 연산 증폭기(OP)를 포함한다.


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    Title :

    VEHICLE INVERTER FOR GENERATING RESOLVER EXCITATION SIGNALS


    Additional title:

    레졸버 여자 신호 생성하기 위한 차량용 인버터


    Contributors:

    Publication date :

    2022-12-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS , Scheinwiderstandsnetzwerke, z.B. Resonanzkreise



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