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using op amps in my circuit?!

Discussion in 'General Electronics Discussion' started by Maisha, Apr 22, 2016.

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  1. Maisha

    Maisha

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    0
    Apr 22, 2016
    hello.In my project i have got a part to control a heater(on/off) from the signals generated from a microcontroller.This heater needs 230v to operate.
    Is there any use of an op amp in my circuit?
     
  2. dorke

    dorke

    2,342
    665
    Jun 20, 2015
    Welcome to EP.
    No op.amp is needed for the on/off action.
    the simplest would be to use a relay driven by a BJT or Mosfet
     
  3. Maisha

    Maisha

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    0
    Apr 22, 2016
    thanku .when can I use an op amp as a protection diode.?
     
  4. dorke

    dorke

    2,342
    665
    Jun 20, 2015
    Why do you want to use an op. amp as a protection diode?Protection from what?
    Just use a diode!

    Op. Amps are amplifiers, they are used in very many ways.
    They can even create a "perfect diode" .
    They are often used as sensing devices and as error amps etc. in protection circuits.
     
    Last edited: Apr 23, 2016
  5. Maisha

    Maisha

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    0
    Apr 22, 2016
    Thanks :)
     
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