Hi-
I'm having some on-going trouble and I can't quite figure out what the problem is.
I'm running a fairly standard comparator circuit, as attached below.
It is being driven with the signal from a full-wave rectified bipolar op amp.
From my understanding of the datasheet, the LM339 should be able to be powered by +/- 12v. I am running it from that because I want -V and +V at the output, in order to discharge the capacitor.
When I breadboarded it, it worked. When I built it worked, then it stopped working. The capacitors no longer seem to discharge effectively. Replacing the IC doesn't help. Rebuilding the whole circuit does work - again, just for a little while.
Can someone suggest a way to solve this problem?
I'm having some on-going trouble and I can't quite figure out what the problem is.
I'm running a fairly standard comparator circuit, as attached below.
It is being driven with the signal from a full-wave rectified bipolar op amp.
From my understanding of the datasheet, the LM339 should be able to be powered by +/- 12v. I am running it from that because I want -V and +V at the output, in order to discharge the capacitor.
When I breadboarded it, it worked. When I built it worked, then it stopped working. The capacitors no longer seem to discharge effectively. Replacing the IC doesn't help. Rebuilding the whole circuit does work - again, just for a little while.
Can someone suggest a way to solve this problem?
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