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VEHICLE STEP-UP CONVERTER CIRCUIT

  • US 20100289330A1
  • Filed: 07/29/2008
  • Published: 11/18/2010
  • Est. Priority Date: 08/27/2007
  • Status: Abandoned Application
First Claim
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1. A vehicle step-up converter circuit comprising:

  • a battery for supplying power to a vehicle drive motor;

    an inductor of which one terminal is connected to one terminal of the battery;

    a first switch connected between the other terminal of the inductor and the other terminal of the battery;

    a second switch of which one terminal is connected to the other terminal of the inductor;

    a capacitor connected between the other terminal of the second switch and the other terminal of the battery; and

    a switch control unit for controlling the first switch and the second switch;

    due to control of the first switch and the second switch, a voltage, which is an induced electromotive force of the inductor added to the terminal voltage of the battery, is applied to the capacitor and a voltage, which is retained by the capacitor, is output as an output voltage;

    due to control of the first switch and the second switch in accordance with travel control of a vehicle, the output voltage is regulated;

    wherein the switch control unit regulates the output voltage by controlling the second switch on and off at a predetermined duty ratio.

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