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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by Varun Dua

  1. V

    Trigger Pulse for IC555 using Inverted Square Pulse

    Hey, I have this circuit idea of which I'm somewhat confused about its logic on how I should on to implement it. I have a voltage sensing section that gives me a square wave of 12V DC. This is applied to a buffer stage which produces 2 12V DC Square Waves on parallel lines. One line goes to a...
  2. V

    Not getting the ideal output

    You mean to say something like this?
  3. V

    Not getting the ideal output

    Ok made few more changes and now getting the right output.. https://obrazki.elektroda.pl/2404526100_1435052033.jpg One last doubt, this circuit would work only if I have a 230V AC Supply but incase if I have a 230V DC Supply, all the DC would get blocked by the capacitor and so we would not get...
  4. V

    Not getting the ideal output

    Ok uploading a more readable digram of it. Yes the supply is supposed to be 230V AC Supply, and I'm taking proper measures to keep it away from any human contact. So according to you changing the value of resistors and capacitor wont help in this case in obtaining a 12V output when the rest of...
  5. V

    Not getting the ideal output

    I implemented this circuit and am getting the output desired but what I observe is that if I dont connect anything across the Zener diode (i.e. if I remove everything after the capacitor connected parallel to zener diode) i'm getting a constant a 12V but if I connect everything I dont get a 12V...

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