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Drive apparatus for vibrating-type compressor

  • US 6,456,508 B1
  • Filed: 12/18/2000
  • Issued: 09/24/2002
  • Est. Priority Date: 12/20/1999
  • Status: Expired due to Fees
First Claim
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1. A drive apparatus for a vibrating-type compressor, the drive apparatus comprising:

  • a DC power source;

    an inverter including switching elements and adapted to convert direct current to alternating current through alternating switching of the switching elements; and

    an inverter control unit for controlling the alternating current supplied from the inverter to the vibrating-type compressor, wherein the DC power source comprises;

    a first power supply including a battery and a DC/DC converter for converting direct current from the battery to direct current of a different voltage;

    a second power supply including a commercial AC power source and an AC/DC converter for converting alternating current from the commercial AC power source to direct current;

    a diode OR circuit to which are connected the first and second power supplies; and

    a circuit which, upon detection of a voltage output from the second power supply, operates to stop the output of the first power supply via a DC/DC converter control unit for controlling the DC/DC converter.

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