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Variable minimum input voltage based switching in an electronic power control system

  • US 8,866,452 B1
  • Filed: 08/10/2011
  • Issued: 10/21/2014
  • Est. Priority Date: 08/11/2010
  • Status: Active Grant
First Claim
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1. A method comprising:

  • determining power utilization of a load coupled to a switching power converter, wherein determining power utilization of the load comprises;

    sensing a link voltage of the switching power converter;

    comparing the link voltage to a reference voltage to generate a comparison value between the link voltage and the reference voltage; and

    determining the power utilization of the load based on the comparison value;

    generating a switch control signal to control the switching power converter when an input voltage to the switching power converter is greater than a threshold value, wherein the threshold value is based on power utilization of the load; and

    disabling generation of the switch control signal when the input voltage to the switching power converter is less than the threshold value.

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