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Electrical apparatus, computer, power switching unit, and power switching method

  • US 20030085626A1
  • Filed: 10/29/2002
  • Published: 05/08/2003
  • Est. Priority Date: 10/29/2001
  • Status: Active Grant
First Claim
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1. ) A power supply for an electrical apparatus, said power supply comprising:

  • an input for receiving power from a commercial power source;

    an output for delivering power to the electrical apparatus;

    a switch for selectively coupling said input to said output a removable battery coupled to said output;

    a circuit for detecting removal of said battery and for activating said switch to couple said input to said output upon detection of the removal of said battery.

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