HOw to convert the square waves in sinusoidal waves when the input is 30 volts

[adeel.hasan]

Is there any one who can HELP please
How to convert the square waves in sinusoidal waves when the input is 30 volts?

 

[magnatro]

it's not so easy as it sounds..!

 

[magnatro]

it's complex ( i think) to convert it directly..

 

[Nigel Goodwin]

And as usual, far more information would be helpful.

 

[MikeMl]

Like what frequency and frequency tuning range????

 

[magnatro]

you can design n oscillator that works on the specification you need and control it with your square wave...

 

[JimB]

A 1khz (for example) square wave is made up from a 1khz sine wave plus all the odd harmonics, 3khz, 5khz, 7khz... etc etc.
So, use either a bandpass filter which will allow just the 1khz funamental to pass or a lowpass filter which attenuated all the harmonics, and you are left with a sine wave.

Now, whether this a a sensible or practical thing to do is a totally different question. It depends on your application.

JimB