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SWITCH WEAR LEVELING

  • US 20130188397A1
  • Filed: 01/23/2013
  • Published: 07/25/2013
  • Est. Priority Date: 01/23/2012
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a switching module that controls switching for two or more pairs of switches in a switching power converter, the switching module controlling each of the two or more pairs of switches closed and open based on a duty cycle control technique, the switching module closing and opening each switch of the two or more pairs of switches in a switching sequence, wherein the two or more pairs of switches connect to a positive terminal and a negative terminal of a direct current (“

    DC”

    ) voltage source, and wherein for a first switching sequence a first switch of a pair of switches has a higher switching power loss than a second switch of the pair of switches; and

    a switch rotation module that changes the switching sequence of the two or more pairs of switches from the first switching sequence to a second switching sequence wherein the second switch of a pair of switches has a higher switching power loss than the first switch of the pair of switches during the second switching sequence.

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