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Power supply apparatus for portable computer and DC input selection circuit adapted to the same

  • US 5,886,424 A
  • Filed: 07/10/1997
  • Issued: 03/23/1999
  • Est. Priority Date: 07/10/1996
  • Status: Expired due to Term
First Claim
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1. A portable computer system, comprising:

  • a notebook computer having a battery backup unit stored within; and

    a docking station onto which said notebook computer attaches to, said docking station being powered by said battery backup unit found within said notebook computer when alternating current power to said docking station is cut off.

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