I am in search of a design for a PWM with a adjustable freq. Rated for 0 24v and freq. adjustment 0 to 60khz. By the way, new here on this form,it's real good. Seems like lots of smart people here, SGTWOOKIE for sure

 

Hello,

If you take a triangle wave oscillator that you can change in frequency and
a comparator that compares teh triangle with a reference voltage,
you will have a PWM signal at the output of the comparator.

The wanted range from 0 - 60 kHz is very large, perhaps split it up in decades like in a function generator.

Greetings,
Bertus

 

Hello,

If you take a triangle wave oscillator that you can change in frequency and
a comparator that compares teh triangle with a reference voltage,
you will have a PWM signal at the output of the comparator.

The wanted range from 0 - 60 kHz is very large, perhaps split it up in decades like in a function generator.

Greetings,
Bertus

nice answer.

and can get more from the internet with google.

 

Hello,

In this link there is an example of PWM with a triangle oscilator:
http://www.picotech.com/applications/pwm_drivers/
See section 5.

Greetings,
Bertus