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Power source inverter circuit

  • US 6,879,502 B2
  • Filed: 06/12/2003
  • Issued: 04/12/2005
  • Est. Priority Date: 06/13/2002
  • Status: Expired due to Term
First Claim
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1. A power source inverter circuit comprising:

  • a variable DC—

    DC converter for raising or dropping a voltage of electric power which is supplied from power feeding means;

    storage means for storing electric power whose voltage has been raised or dropped by the variable DC—

    DC converter;

    a MOSFET switch for connecting an output of the power feeding means to an input of the variable DC—

    DC converter;

    a MOSFET switch for connecting an output of the variable DC—

    DC converter to an input of the storage means;

    a MOSFET switch for connecting the output of the variable DC—

    DC converter to an input of a load circuit;

    a MOSFET switch for connecting the input of the variable DC—

    DC converter to the input of the storage means;

    a control circuit for controlling gates of the MOSFET switches; and

    a voltage detector for monitoring an output voltage of the power feeding means, a voltage of the storage means, and an input voltage of the load circuit, and for outputting voltage information to the variable DC—

    DC converter and to the control circuit.

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