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    Sorry not details given. Below are ideal IR...

    Sorry not details given. Below are ideal IR transmitter design stage; But after i build up whole IR transmitter circuit, i found that IR LED no voltage due to Q2 Transistor Emitter no voltage (Base...
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    11,338

    IR Communication by using PT2248/PT2249A

    HI All,
    Recently i build a IR communication circuit and still fails to figure out what went wrong..
    I hope can get your expert help on this. Below are component list and attach files is my circuit...
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