What voltages are on the two comparator inputs in normal operating mode?
The plus input should be more positive than the minus input to turn off the output transistor.
If the voltages are not like that, then the comparator could be working properly.
Bob
The plus input should be more positive than the minus input to turn off the output transistor.
If the voltages are not like that, then the comparator could be working properly.
Bob
From:
tuk88@rocketmail.com [PolySix] <PolySix@yahoogroups.com>;
To: <PolySix@yahoogroups.com>;
Subject: Re: [PolySix] Re: Non-working attenuator
Sent: Fri, Jan 2, 2015 4:31:14 PM
To: <PolySix@yahoogroups.com>;
Subject: Re: [PolySix] Re: Non-working attenuator
Sent: Fri, Jan 2, 2015 4:31:14 PM
I confirm that the problem come from the IC5. I disconnect the output 1 and everything works fine. I will adjust the reset circuit and try again. If it doesn't work, i'll check the different signal which fed this AOP.
I'll keep you in touch
Lucas
Attachments
- No local attachments were found for this message.