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Recent content by mail4harish_s

  1. M

    Triac to Anti Parallel Thyristor Shift

    Dear Ahsan, I was not able to get back to you any earlier as I was out of town on vacation for almost 1 & 1/2 months now. I tried your snubber circuit and a few other versions from the internet after returning back, but it was not all that successful. Hence I think I will stay with the Triac and...
  2. M

    Triac to Anti Parallel Thyristor Shift

    Hi Ahsan, Thanks once again for your replies. I will first try with the 680 Ohms, in order to check for surge current limitations and then try for the snubber. Will post back once have tried both procedures. I only have a small doubt in my mind of weather this same noises and spikes have any...
  3. M

    Triac to Anti Parallel Thyristor Shift

    Hi Ahsan, Thank you very much for your pictorial reply. I shall give it a try and write back to you. - - - Updated - - - Hi Ahsan, I just tried working with your design. I had connected a bulb to the anti-parallel scr to test the functioning. It started off well, but in between 120 V to 180...
  4. M

    Triac to Anti Parallel Thyristor Shift

    Hi, I am working on a Triac load control using a 4-20mA signal as an input. Have used a TCA785 and the output from Pins 14 & 15 are fed via 2 forward biased diodes and a resistor to MOC 3021. The triac works just fine and I get a decent output regulation on the input 4-20mA variation. What...

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