In a power supply circuit having input and output terminals, an error amplifier has first and second paths independent of each other to output a control voltage, a first MOS transistor is interposed between the input terminal and an intermediate node, and a step-up section steps up a voltage supplied from the intermediate node and outputs the stepped-up voltage to the output terminal. The step-up section includes a capacitor, a second MOS transistor, a third MOS transistor, and a drive circuit. The first end of the capacitor is connected to the intermediate node. The second MOS transistor is interposed between the input terminal and a second end of the capacitor. The third MOS transistor is interposed between the second end of the capacitor and a ground. The drive circuit drives the second and third MOS transistors in a complementary manner based on a clock signal.


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    Title :

    POWER SUPPLY CIRCUIT


    Contributors:

    Publication date :

    2015-09-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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