using op amps in my circuit?!

[Maisha]

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?

 

[dorke]

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

 

[Maisha]

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

thanku .when can I use an op amp as a protection diode.?

 

[dorke]

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.

 

[Maisha]

Thanks