Envelope tracking

Thread Starter

Aldohg

Joined Jul 29, 2019
5
Hello friends, I am Aldo. I need measure the envelope of a signal, from 2 hz to 500 hz, as accurate as possible. I tried many circuits made by me, and many that I saw on electronic pages, and honestly none works as it should.
Can someone help me ?, did anyone try a circuit that really works well ?. Using only one diode, with capacitor and a ground resistor does not work, it does not work well.
I need a precision circuit, with operational amplifiers.
Thank you very much !!!

Aldo
 

ericgibbs

Joined Jan 29, 2010
12,597
hi Aldohg,
Welcome to AAC.
Is this a home work or a colleges assignment, if yes, please post your best effort and then we can help.
E
 

Thread Starter

Aldohg

Joined Jul 29, 2019
5
126/5000



I can't get the output to faithfully copy the periphery of the incoming waveform. Something deformed comes out ... I will keep trying ..
 
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