- #1
samaaa
- 48
- 0
hi:
i designed an active low-pass filter,but i don't know if it correct method or not
i want fc=200 Hz and n(order)=4. i use this method:
by let C=100 nF and use this equation "fc=1/(2*pi*C*R1)"
i get R1= 8 Kohm,R2=R1
this is for one stage
to get filter of 4 order,i repeat that stage 4 times
http://uploadpic.org/storage/2011/M3Oveluhfm4grO0dEPhZiUv.png
so is this method correct?
i designed an active low-pass filter,but i don't know if it correct method or not
i want fc=200 Hz and n(order)=4. i use this method:
by let C=100 nF and use this equation "fc=1/(2*pi*C*R1)"
i get R1= 8 Kohm,R2=R1
this is for one stage
to get filter of 4 order,i repeat that stage 4 times
http://uploadpic.org/storage/2011/M3Oveluhfm4grO0dEPhZiUv.png
so is this method correct?