Control circuit used for laser module group and laser collimator with control circuit

Control circuit used for laser module group and laser collimator with control circuit

  • CN 104,901,158 A
  • Filed: 05/21/2015
  • Published: 09/09/2015
  • Est. Priority Date: 05/21/2015
  • Status: Active Application
First Claim
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1. for a control circuit for laser module, comprising:

  • laser diode LD and the PD feedback module for detecting described laser diode LD power, described PD feedback module comprises photodiode PD, it is characterized in that, described PD feedback module also comprises;

    PD monitoring unit, presets a calibration power in it, is connected with described photodiode PD, receives the power of the laser diode LD of described photodiode detection, and the power of more described laser diode LD and described calibration power thus export a control command;

    Described control circuit also comprises;

    LD power control circuit, is connected with described PD monitoring unit, receives the power that described control command also correspondingly controls described laser diode LD.

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