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Systems and methods for intelligent dimming control using TRIAC dimmers

  • US 10,448,469 B2
  • Filed: 12/08/2017
  • Issued: 10/15/2019
  • Est. Priority Date: 07/08/2014
  • Status: Active Grant
First Claim
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1. A system for a power converter, the system comprising:

  • a first signal generator configured to receive an input signal and output a drive signal to a switch to affect a current that flows through a winding of a power converter;

    wherein;

    the drive signal is associated with a first modulation period for a first input period and a second modulation period for a second input period;

    wherein the first signal generator is further configured to;

    determine the first modulation period for the first input period;

    change the drive signal between a first logic level and a second logic level at a modulation frequency during the first modulation period;

    determine the second modulation period for the second input period; and

    change the drive signal between the first logic level and the second logic level at the modulation frequency during the second modulation period;

    wherein;

    a first pulse corresponds to a first pulse width;

    a second pulse corresponds to a second pulse width;

    the first modulation period corresponds to a first duration; and

    the second modulation period corresponds to a second duration.

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