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Light source driving circuitry for electronic devices

  • US 10,260,940 B2
  • Filed: 03/11/2016
  • Issued: 04/16/2019
  • Est. Priority Date: 03/11/2016
  • Status: Active Grant
First Claim
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1. Circuitry, comprising:

  • a signal generator that produces ramped pulses;

    a differentiator that differentiates the ramped pulses to produce differentiated pulses;

    a light source; and

    an output driver circuit that receives the differentiated pulses and that supplies corresponding signal pulses to the light source, wherein the output driver circuit comprises a transistor having a gate that receives the differentiated pulses and wherein an output power of light emitted by the light source is controlled by the signal pulses.

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