What is the function of an oscillation circuit?

[adisaat]

Is the circuit meant for ac or dc supply?

When i use Dc supply, The circuit wont work at all,
I thought it was meant to make the dc supply oscillate

Then i used Ac supply,I patch up my circuit for a piezo disc,
I measured the input Vac and at the piezo disc, I found out that its the same value ><

It seemed to me that i could just ignore the circuit and just apply the Vac directly to my piezo disc. Which i did which resulted in the same results

 

[dknguyen]

Oscillators can be made to run off of any supply. BUt usually they are made to run off of a DC supply.

But oscillators make an oscillating *SIGNAL*. Signals are very low power and you can't drive things with such a low power signal. You would need some kind of driver or amplifier that accepts the oscillating signal and produces a high power output to drive the piezo. It's the same as how you can't drive a motor directly from a microcontroller pin- you use the pin's signal to control a motor driver that produces a high power current to drive the motor. That was probably your problem.

 

[adisaat]

Hmm so what will happen if i use a higher input,
Will the output be higher as well?

I mean is the input and out directly proportional as in when input increase, output will also increase? Thanks

 

[BrownOut]

Hmm so what will happen if i use a higher input,
Will the output be higher as well?

I mean is the input and out directly proportional as in when input increase, output will also increase? Thanks

No. Never exceed the specified input voltage.

 

[adisaat]

Thanks for the reply.
Kept forgetting this isnt an amplifier circuit XD

 

[Hero999]

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