I am comparing two signals at pin7 and 6 of Comparator Initially I did not provide any hysterisis resulting in the chattering of the relay when signals cross levels, then I added positive feed back to rectify this now my concern is :-
1. whether my circuit is ok ?
2. When I set a Reference at viper of VR5 (in my circuit it is 8.46v and monitor this ref by connecting a voltmeter. I observe a change (may be due to positive feedback) at VR5 viper whenever I vary RV5, So how do I monitor voltage at VR5 viper correctly?
3. Circuit is very sensitive even touching screwdriver tip to vipers activates relay causing malfunction. any solutions please.
4. I need a dead zone of around 0.1 to0.5 volts to avoid chattering of the relay.
4. Circuit is a part of a system controlling further operations.
5 I am attaching part of the circuit in PDF format.
1. whether my circuit is ok ?
2. When I set a Reference at viper of VR5 (in my circuit it is 8.46v and monitor this ref by connecting a voltmeter. I observe a change (may be due to positive feedback) at VR5 viper whenever I vary RV5, So how do I monitor voltage at VR5 viper correctly?
3. Circuit is very sensitive even touching screwdriver tip to vipers activates relay causing malfunction. any solutions please.
4. I need a dead zone of around 0.1 to0.5 volts to avoid chattering of the relay.
4. Circuit is a part of a system controlling further operations.
5 I am attaching part of the circuit in PDF format.
Attachments
-
7.7 KB Views: 50