Digital average input current control in power converter

  • US 10,116,217 B2
  • Filed: 04/24/2017
  • Issued: 10/30/2018
  • Est. Priority Date: 08/06/2007
  • Status: Active Grant
First Claim
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1. A method comprising:

  • predicting an inductor current based on at least one of a sampled inductor current, a sampled input voltage, or a sampled output voltage;

    controlling a duty cycle based on the predicted inductor current to cause an input current of a converter to approach a particular input current; and

    switching the converter from a buck-boost mode to a boost mode in response to determining that the duty cycle has been above a threshold for more than a plurality of consecutive switching cycles.

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