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Air conditioner including a control unit powered by a switching power supply

  • US 6,665,200 B2
  • Filed: 05/31/2002
  • Issued: 12/16/2003
  • Est. Priority Date: 06/06/2001
  • Status: Expired due to Term
First Claim
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1. An air conditioner comprising:

  • a power application device coupled in series to a DC power source;

    a switch device coupled in parallel with said power application device;

    a capacitor charged by said DC power source via said power application device;

    a voltage detector for detecting the voltage of said capacitor;

    an output unit for driving a motor-driven compressor for air conditioning, said output unit receiving power from said DC power source via said switch device;

    a control unit for controlling said output unit; and

    a power supply for supplying power to said control unit, said power supply receiving power from said DC power source without coupling through said switch device and without coupling through said power application device.

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