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Peak detector . . . .Help . . . .

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fero123

New Member
PLEASE HELP ME:
I'd like to get the peak value of a signal of frequancy about 50 Hz and i got a schematic with the LM393 but it doesn't work. . . . . .
Another question I used the LM 339 as an "Acceptable voltage tester" in order to test if the voltage is in the accepted range or know and that circuit worked well with DC but when I used it with AC via an RC and bridge rectifier i found that the voltage refernce i made before "using potential devider" changes "flactuates" with the input rectified signal so what can i do please help me soon . . . .
Thanks
 

Gene

New Member
1. You have a schematic that dosen't work? You will probably have to share the schematic for help.

2. Your DC voltage fluctuates? You will probably have to share the schematic for help. How much fluctuation? Is there a filter in the schematic?
 

Scubasteve

New Member
This is for everyone... If you are going to ask a question and want help, please take the time to be clear and complete with details so that we are not stuck decoding and misinterpreting. It isn't that difficult to spend a couple minutes to make it answerable..

Steve
 
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