scr firing circuits

Discussion in 'Embedded Systems and Microcontrollers' started by mukulkr82, May 2, 2010.

  1. mukulkr82

    mukulkr82 Thread Starter New Member

    Joined:
    May 2, 2010
    Messages:
    1
    hi

    actually i have 6 push full wave fully controlled scr firing pulse circuits but its functionality depends on sync. supply.

    my improvement task is "without sync. supply".

    details:
    sync. supply is use for pulse generation through "zero crossing and current controller output", then after IC 4538B is used for dual pulse generation .
    for 6 scr's total 6 op-amp is used as zero crossing dect. circuit.
    total 12 pulse generated for 6 scr.

    one more point is ac power supply and circuit control supply match ( vector group) with small transformer(not power transformer, simple 3 transformer )


    please reply.


    thanks
    Mukul
  2. beenthere

    beenthere Retired Moderator

    Joined:
    Apr 20, 2004
    Messages:
    15,815
    Location:
    Missouri, USA (GMT -6)
    This is hard to understand. When you say:
    - does this mean you have an assignment to control the SCR's without reference to the zero crossing detectors?

    Is this a circuit under control of a microprocessor? Can you furnish a block diagram of the desired circuit?
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