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System, method and apparatus for controllable power supply

  • US 20020140400A1
  • Filed: 03/14/2002
  • Published: 10/03/2002
  • Est. Priority Date: 03/14/2001
  • Status: Active Grant
First Claim
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1. A power supply system comprising:

  • a secondary battery for supplying power to a load circuit, a power receiving unit for receiving power externally provided to the load circuit;

    a switch for selectively supplying the power of the secondary battery or the power externally provided to the load circuit; and

    a controller for instructing the switch to stop the supply of the power externally provided to the load circuit for a predetermined time zone.

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