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Method and apparatus to control a power converter having a low loop bandwidth

  • US 8,867,240 B2
  • Filed: 09/18/2013
  • Issued: 10/21/2014
  • Est. Priority Date: 02/09/2010
  • Status: Expired due to Fees
First Claim
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1. A controller for use in a power converter, comprising:

  • a comparator coupled to receive a signal representative of an output of the power converter;

    a counter coupled to an output of the comparator to sample the output of the comparator a plurality of times within a period;

    a state machine coupled to an output of the counter to control switching of the power converter according to one of a plurality of operating condition states in response to the output of the counter, wherein the state machine is coupled to be updated at an end of the period.

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