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Method and apparatus for controlling a synchronous rectifier

  • US 20050254266A1
  • Filed: 03/28/2003
  • Published: 11/17/2005
  • Est. Priority Date: 03/29/2002
  • Status: Active Grant
First Claim
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1. A power converter for supplying an output power to a load, comprising:

  • a switching device having a switching input, a switching output, and a control input for enabling or disabling said switching device from conducting current from said switching input to said switching output; and

    a network wherein said switching device input, said switching device output, and the load are connected together in a circuit;

    a bias winding in said circuit for producing a bias voltage representative of the output power; and

    a control circuit for (a) determining the rate of change of said bias voltage, (b) characterizing said rate of change, and (c) controlling said control input as a result of the characterization (b).

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