ferdem
Full Member level 2
Hi all, I have 50Khz returning echo signal in an ultrasound application. Echo signal is amplified well but need to be reshaped. It is like gaussian pulse and I want to convert it to a clear square pulse. Here waveforms:
**broken link removed**
Now I m using envelope detector preceding a comparator, like an ASK demodulator. Results are not bad but I m looking for some other circuits that may have better performance, more suitable etc. I have a few opamps and passives. What would you suggest me? Thanks in advance.
**broken link removed**
Now I m using envelope detector preceding a comparator, like an ASK demodulator. Results are not bad but I m looking for some other circuits that may have better performance, more suitable etc. I have a few opamps and passives. What would you suggest me? Thanks in advance.
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