Universal multiple device power adapter and carry case

  • US 20040085694A1
  • Filed: 07/03/2003
  • Published: 05/06/2004
  • Est. Priority Date: 11/01/2002
  • Status: Active Grant
First Claim
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1. A power adapter comprising:

  • an input configured to receive input power;

    a switch coupled to the input and configured to selectively couple the input to one of a low-voltage output and a high-voltage output, the switch being in one of a low-voltage position and a high-voltage position, respectively; and

    a selector circuit coupled to the input and to the switch and configured to provide a control signal to the switch such that the switch will be in the low-voltage position if the input receives input power having a DC voltage lower than a threshold voltage and will be in the high-voltage position if the input power has an AC voltage higher than the threshold voltage.

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