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Power management topologies

  • US 20040178766A1
  • Filed: 03/30/2004
  • Published: 09/16/2004
  • Est. Priority Date: 09/21/2000
  • Status: Active Grant
First Claim
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1. A wake up circuit comprising:

  • a comparison circuit adapted to receive a first signal representative of a charging current level provided to a battery via a path and a second signal representative of a predetermined wake up current level and to provide a comparison output signal in response to said first and second signal; and

    an output decision circuit adapted to receive at least said comparison output signal and a selector signal from a selector circuit, said output decision circuit providing one of said comparison output signal and said selector signal to a switch to control a state of said switch, said switch coupled to said path.

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