Primary-side-control power converter having a switching controller using frequency hopping and voltage and current control loops

CAFC
  • US 7,259,972 B2
  • Filed: 10/07/2004
  • Issued: 08/21/2007
  • Est. Priority Date: 10/07/2004
  • Status: Active Grant
First Claim
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1. A power converter comprising:

  • a switch, responsive to a switching signal, to control electrical power in the power converter; and

    a controller to generate the switching signal and to control the switching signal in response to a first feedback signal associated with a voltage control loop and a second feedback signal associated with a current control loop;

    wherein the controller includes a pattern generator to generate a digital pattern and the controller uses the digital pattern for use in generating the switching signal as a frequency-hopping switching signal to the switch.

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