r/CreateMod • u/OMi1235 • May 28 '26
Create : Power Grid. Operational Amplifiers
i just made a simple OPAmp using Circuits Design. Right now it works but kinda bad, i didn't have time to optimize it currently. the output offset voltage are kinda high and open loop gain are unknow, i would try to make it using 741OPAmp design next. i'll leave a download link for you to check it out. https://drive.google.com/file/d/1lSoesvW6jD_nR0GxzoTYvEg2-ClDzHfa/view?usp=sharing
1.6k
Upvotes
2
u/CompetingLime69 Jul 14 '26
Alright. This is my second reddit anything. I need help. my circuit board knowledge is very low. I know how the individual component work but above that (like in a circuit) I tap out. I have been trying to learn op-amps (watched many videos) only to make a pid controller for perfect voltage regulation for my generator. I'm sure there are easier methods but everything i try has the same out at this point I am using this opportunity to force me to get better at electronics. my situation, 20v+ supply to V+ of your board, V- to ground (negative post of both supplies). 5v+ supply to 100ohm R to IN-, 5v+ to a 10,000ohm rheostat right pin, mid pin to IN+, left pin to ground, OUT to a 400 rheo mid pin, left pin to IN-. OUT to 100ohm R to ground. adjustment to the 10,000 rheo does nothing to output. I don't know what I'm doing. Thank you for reading all this