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Controller for modifying dead time between switches in a power converter

  • US 8,520,420 B2
  • Filed: 12/18/2009
  • Issued: 08/27/2013
  • Est. Priority Date: 12/18/2009
  • Status: Active Grant
First Claim
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1. A power converter, comprising:

  • first and second power switches coupled to an input of said power converter;

    a sensor configured to provide a sensed signal representative of at least one of a current level and a power level of said power converter, and limit a value of said sensed signal; and

    a controller configured to increase a dead time between conduction periods of said first and second power switches when said sensed signal indicates a decrease of at least one of said current level and said power level of said power converter, a modification of said dead time being constrained to a dead time limit in accordance with said limit of said value of said sensed signal.

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