Hi everybody,
I’ve finished my aout and everything seems to work as expected until I do calibration procedure:
i begin with the 5v step at 0v using the trimpot .
after that I do 1v, 2v, 3v, 4v steps and when I go back to the 5v step ( with zero calibration correction) the voltage isn’t a 0v anymore.... no matter how many I try to reproduce thoses step. I cannot have a précise calibration and my vcos aren’t tracking properly. ( I use bipolar calibration)
any help will be appreciated :)