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  1. S

    Help with photodiode

    Hi. i am working with BPW21R photodiode. I am controlling the output using LED as an illuminating source and controlling it by pulse width modulation. I need to amplify the current upto 1.5 amperes - 2 amperes. I have 2N3055 power transistors and have used them in darlington pair configuration...
  2. S

    Help with IR laser driver

    I am trying to heat a small quantity of water solution. Its not more than 5 micro liter.
  3. S

    Help with IR laser driver

    I currently have 1W and 2W IR lasers. Will 2W be enough? i need maximum temperature of 95 degree Celsuis.
  4. S

    Help with IR laser driver

    I wish to drive a 1W IR laser and use it as a heating element. Please guide on how should i go about it. How do i construct a drive circuit and control it.




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