scr firing circuits

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

  1. mukulkr82

    mukulkr82 Thread Starter New Member

    May 2, 2010

    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".

    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.

  2. beenthere

    beenthere Retired Moderator

    Apr 20, 2004
    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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