Thunderchild
New Member
Hi all, before i go blundering in and wasting time I'd like to clear a few small details up. I'm thinking of a circuit that will output a signal to drive a mosfet when a voltage in one point "exeeds" voltage at another point, this needs to take place with just a few millivolts ideally. so does the input offset voltage get in the way of pefection. for example if I have a LM393 with a 2 mV offset, does this mean that there will be an error of 2 mV in "reading" the two voltages, so potentially the ouput could flip 2 mV before the deadline is met ? my idea is to control the direction of current flow, so really I don't want it flowing the wrong way even with a sloght difference although I think practically it won't be an issue