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Constant current controller with selectable gain

  • US 8,593,075 B1
  • Filed: 06/30/2011
  • Issued: 11/26/2013
  • Est. Priority Date: 06/30/2011
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving a sense signal at an input node of a switching power converter;

    using a selectable gain value to generate a duty cycle modulated control signal to control current supplied to a load, wherein the gain value is proportional to the sense signal and the current supplied to the load; and

    controlling the current supplied to the load using the duty cycle modulated control signal.

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