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Current prediction in a switching power supply

  • US 20060119331A1
  • Filed: 08/01/2005
  • Published: 06/08/2006
  • Est. Priority Date: 08/02/2004
  • Status: Active Grant
First Claim
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1. A switching power supply comprising:

  • at least one power signal input structured as circuitry for providing an input electrical power signal to the switching power supply;

    at least one power signal output structured as circuitry for providing an output electrical power signal from the switching power supply;

    a passive component set comprising at least one inductor and a capacitor;

    an active component set comprising a first power supply switch connected in series between the inductor and capacitor; and

    zero current predictor circuitry structured and electrically connected to predict when inductor current will fall to zero and to send a signal to close the first power supply switch based on this prediction.

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