SCR's firing angle


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  1. #1
    Join Date
    Sep 2008
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    Default

    btw, i am making a cycloconverter to control motorspeed. i dont really know how to program my PIC to fire an angle or variable angle for my SCR. please guide me..

  2. #2
    Join Date
    May 2004
    Location
    NW France
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    Unhappy

    Hi,

    It's NOT a "Mc Do" drive in here ... too bad : you have to cook your own food ...

    We just provide the receipes and the pan. lol

    a little effort from you IS necessary ... post #2 !!! ... title is " Dimmer.bas"

    Alain
    Last edited by Acetronics2; - 26th September 2008 at 09:11.
    ************************************************** ***********************
    Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
    ************************************************** ***********************
    IF there is the word "Problem" in your question ...
    certainly the answer is " RTFM " or " RTFDataSheet " !!!
    *****************************************

  3. #3
    Join Date
    Feb 2005
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    Kolkata-India
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    Default Are you comfortable with interrupts

    Hi,

    In case of a cycloconverter you need to track the phase of the ac input also. I use pulse transformers which fires 8 SCRs to achieve cyclo-conversion and phase angle control. The hardware PWMs are used as a low duty cycle pulse generation AND gated. Mine is for a trainer kit application.
    Regards

    Sougata

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