TCA785 working circuit/driving 6 thyristors.

Discussion in 'The Projects Forum' started by chiuye isaac, Dec 25, 2009.

  1. chiuye isaac

    Thread Starter New Member

    Dec 17, 2009
    2
    0
    I am looking for a practical working schematic for a 6 thyristor drive unit employing IC TCA785 as controller driving through ULN2004 and 6 pulse transiformers.
    Help will be appreciated.
    Isaac
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    It would help considerably if you gave all the parameters and as detailed a schematic as possible. If possible, the trigger circuit needs to be explicitly drawn.

    Do you expect to use only one TCA785?
     
  3. chiuye isaac

    Thread Starter New Member

    Dec 17, 2009
    2
    0
    Hi, was away for short time!
    I intend to use 3 x TCA785. I also want to pass outputs from TCA785 via TC4071. Output from TC4071 to drive ULN2004. I.E. output from TCA785 to feed TC4071 and output of TC4071 to feed ULN2004. Circuit components will be 3x TCA785, 2x TC4071 and 1x ULN2004. Is this practical? I am not able to upload a sketch now, will try to do so later, possibly in form of block diagram.
    Regards,
    Chiuye Isaac.
     
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