patan.gova
Full Member level 3
Hello,
I was replacing a active Lowpass filter with a sallen-key lowpass filter but the sallenkey-filterLPfilter output was a 2.98V(DC) while the active lowpass filter was having a good pulse output.
Activelowpass filter **broken link removed** sallenkey-Lowpass filter **broken link removed**
The sallenkeyLPfilter used here was designed in the TI filterpro for a cutoff freq of 3Hz as shown here.
can someone explain why there is a difference in working between the two.
I was replacing a active Lowpass filter with a sallen-key lowpass filter but the sallenkey-filterLPfilter output was a 2.98V(DC) while the active lowpass filter was having a good pulse output.
Activelowpass filter **broken link removed** sallenkey-Lowpass filter **broken link removed**
The sallenkeyLPfilter used here was designed in the TI filterpro for a cutoff freq of 3Hz as shown here.
can someone explain why there is a difference in working between the two.