6 Threads found on edaboard.com: Design 1st Order Low Pass Filter
Best low sensitivity high Q BPF is Salen & Keys design. Here is an integrated solution you can copy.
What you have is a LPF and a HPF , each is a 1st order filter, cascaded becomes a 2nd order..
A tuned 2nd order is better. and higher order permit (...)
Analog Circuit Design :: 04-21-2012 16:29 :: SunnySkyguy :: Replies: 19 :: Views: 1390
Forget the given formula for Fo. That's applicable for a 1st order lowpass only.
Here you have a second order active filter, which has to be calculated according to the rules that apply to an opamp with feedback. I assume you are familiar with opamp circuits.
When you compare the result (2nd (...)
Analog Circuit Design :: 06-10-2011 08:21 :: LvW :: Replies: 17 :: Views: 2430
You may add a cap in parallel with R to form a 1st order low pass filter.
Your opamp usually has requirements on voltage supply. So using supply as limiters is not a good solution.
low price resistors, capacitors, and LEDs:
Would you let me know how to (...)
Analog Circuit Design :: 11-04-2009 14:59 :: vistapoint :: Replies: 6 :: Views: 5873
Hi, rg350dxlover !
Quote: I'm supposed to design a 3rd order Butterworth low-pass filter and so I combined 1st order and 2nd order Butterworth low-pass.
Perhaps I misunderstood your wording, however, just to avoid an (...)
Analog Circuit Design :: 07-15-2008 07:09 :: LvW :: Replies: 3 :: Views: 1702
hi, how to write matlab code for RC 1st order low pass filter??
i saw many matlab codes from internet , like butterworth, chebychev...
but don't have the one for RC low pass filter??
pls advice how to do it? i was stuck in RC filter (...)
Digital communication :: 12-24-2006 23:37 :: cmppolish2006 :: Replies: 0 :: Views: 4065
use "filter Wiz Pro" for your design.
Professional Hardware and Electronics Design :: 10-27-2006 01:57 :: ynhe :: Replies: 11 :: Views: 2552