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CIRCUIT AND METHOD FOR FLICKER SUPPRESSION IN LIGHT EMITTING DIODES (LEDS)

  • US 20140217911A1
  • Filed: 02/02/2013
  • Published: 08/07/2014
  • Est. Priority Date: 02/02/2013
  • Status: Active Grant
First Claim
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1. A circuit for flicker suppression in a Light Emitting Diode (LED) comprising:

  • a latch, the latch having a first state set with a trailing edge of Pulse Width Modulated Dimming (PWMD) pulse, and a second state set delayed with respect to the PWMD trailing edge; and

    a trigger circuit coupled to the latch, the trigger circuit sending a signal to the latch to change to the second state when a decision point occurs during a time following a duty limit Dmax of a gate of a LED driver circuit.

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