Ladies and Gentlemen,
I found a PWM CONTROLLER (UC3845) and would like that the output voltage (actual tension) becomes scalable (e.g. from 30V to 100V). For this reason I must be able to change the Vref over a potentiometer. In the data sheet the Vref is constant.
My question is:
Can I change Vref?
If yes, how?
I would be very grateful for you, if you give me an answer.
Yours sincerely