SCR control

Discussion in 'General Electronics Chat' started by damonj, Jan 29, 2010.

  1. damonj

    Thread Starter New Member

    Jan 28, 2010
    So I came up with this for phase control on some high power SCR's based on the TCA785, take a look at it if you have a minute and tell me if you think it will work. The SCRs have a gate trigger current of about 200ma, I think. Can't find a datasheet on them. It's possible the IL420 may not support enough current to drive the SCRs, if that is the case I might substitute a darlington transistor.
    Last edited: Jan 29, 2010