12-10-2012, 04:48 PM
NARROW BAND PASS AND NARROW BAND REJECT FILTER
NARROW BAND PASS.ppt (Size: 358.5 KB / Downloads: 32)
NARROW BAND REJECT FILTER
Also called notch filter.
The network used here is twin T network
The notch out frequency is the frequency at which maximum attenuation occurs.
USE
Used for rejection of single frequency such as 60 Hz power line frequency hum.
The values of resistors and capacitors in the simualted circuit are-
R=39.01k
C=0.068uF
Thus the filter is a 60 Hz active notch filter