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Power Converter Employing a Variable Switching Frequency and a Magnetic Device with a Non-Uniform Gap

  • US 20100321958A1
  • Filed: 06/17/2009
  • Published: 12/23/2010
  • Est. Priority Date: 06/17/2009
  • Status: Active Grant
First Claim
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1. A power converter, comprising:

  • a power switch;

    a magnetic device coupled to said power switch and having a non-uniform gap; and

    a controller, including;

    a detector configured to sense a condition representing an output power of said power converter; and

    a control circuit configured to control a switching frequency of said power switch as a function of said condition and control a duty cycle of said power switch to regulate an output characteristic of said power converter.

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