HasHx
Member level 4
Hello, I have reverse engineered the attached circuit from an old power supply, i was wondering how the comparator works? can someone help me figure out how they did the calculations? i really want to get rid of the potentiometer (R2) which is used to tune the output and get 12v instead of 19v.
Thanks.
Edit: the voltage reference D6 is 2.495v
Thanks.
Edit: the voltage reference D6 is 2.495v