A power supply device is provided with: a DC power supply (13); inverters (42A, 42B) to which power is supplied from the DC power source; capacitors (CA1, CA2, CB1, CB2) connected in parallel with the inverter between the DC power supply and the inverter; reverse connection protection circuits (44A, 44B) that are connected between the DC power supply and the capacitor and that block a current flowing from the capacitor to the DC power supply in a positive-electrode-side power supply line (Lpa) of the DC power supply; and overvoltage protection circuits (45A, 45B) that, when the voltage across the capacitor is equal to or greater than a predetermined voltage, control the voltage across the capacitor to be equal to or less than the predetermined voltage.

    电源装置具备:直流电源(13);逆变器(42A、42B),其从直流电源供给电力;电容器(CA1、CA2、CB1、CB2),其在直流电源与逆变器之间与逆变器并联连接;反接保护电路(44A、44B),其连接在直流电源与电容器之间,阻止在直流电源的正极侧电源线(Lpa)中从电容器流向直流电源的电流;以及过电压保护电路(45A、45B),其在电容器的两端电压成为规定电压以上的情况下,将两端电压控制为规定电压以下。


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    Title :

    Power supply device and electric power steering device


    Additional title:

    电源装置以及电动助力转向装置


    Contributors:

    Publication date :

    2024-10-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    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 / B62D MOTOR VEHICLES , Motorfahrzeuge / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



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