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Digital average input current control in power converter

  • US 8,773,092 B2
  • Filed: 10/26/2012
  • Issued: 07/08/2014
  • Est. Priority Date: 08/06/2007
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • transferring a converter from a boost mode to an alternating buck-boost mode in response to a duty cycle dropping below a first predetermined value for at least a first predetermined number of cycles; and

    transferring the converter from the alternating buck-boost mode to the boost mode in response to the duty cycle climbing above a second predetermined value for at least a second predetermined number of cycles.

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