Feb 10, 2009 #1 S savage67 Member level 1 Joined Sep 25, 2006 Messages 40 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 1,587 i need a circuit to compare two voltage nodes. if V1=V2, output must be 1(or 0) else, output must be 0(or 1) the problem is that, using a opamp is not allowed. can you help me to solve this problem. thanks
i need a circuit to compare two voltage nodes. if V1=V2, output must be 1(or 0) else, output must be 0(or 1) the problem is that, using a opamp is not allowed. can you help me to solve this problem. thanks
Feb 10, 2009 #2 erikl Super Moderator Staff member Joined Sep 9, 2008 Messages 8,108 Helped 2,695 Reputation 5,370 Reaction score 2,305 Trophy points 1,393 Location Germany Activity points 44,123 Here's a very simple schematic to start with. https://www.allaboutcircuits.com/vol_6/chpt_5/16.html The potentiometer taps are your inputs. Have fun!
Here's a very simple schematic to start with. https://www.allaboutcircuits.com/vol_6/chpt_5/16.html The potentiometer taps are your inputs. Have fun!