Connecting an opto couplers input led in series with the collector of a bjt

Discussion in 'Analog & Mixed-Signal Design' started by Yami, Apr 20, 2018.

  1. Yami

    Thread Starter Member

    Jan 18, 2016
    108
    0
    Hi, I was wondering if I could connect the opto couplers or opto diac input as shown in the picture. Because normally I don't see it connected like that. But technically it should work shouldn't it? The simulation works

    Darksensing circuit1.jpg
     
  2. ericgibbs

    Moderator

    Jan 29, 2010
    5,975
    1,130
    hi Yami,
    It looks OK to me, the only addition I would make is the Trigger resistor pin #4 to the Triac.
    E
    ESP1 20-Apr-18 08.50.gif
     
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