Frequency response of RC Coupled amplifier
Characteristics of a RC coupled amplifier ii low ,middle and high frequency range is called frequency response curve
This also called log magnitude plot
\(f_H→\) upper 3db frequency
\(f_L→\) lower 3db frequency
\(f_H-f_L→\)3db bandwidth
At lower drequency the reactance of \(C_c\) is high and gain reduced due to in sufficient coupling .
At high frequency the reactance of \(C_o\)is small and act as short circuit and reduce gain
At mid frequency \(C_c\) reduces and \(C_o\) increases ,so gain is constant
GBW(gain bandwidt product)→Amid(\(F_2-F_1\))
MathJax example
Characteristics of a RC coupled amplifier ii low ,middle and high frequency range is called frequency response curve
This also called log magnitude plot
\(f_H→\) upper 3db frequency
\(f_L→\) lower 3db frequency
\(f_H-f_L→\)3db bandwidth
At lower drequency the reactance of \(C_c\) is high and gain reduced due to in sufficient coupling .
At high frequency the reactance of \(C_o\)is small and act as short circuit and reduce gain
At mid frequency \(C_c\) reduces and \(C_o\) increases ,so gain is constant
GBW(gain bandwidt product)→Amid(\(F_2-F_1\))
No comments:
Post a Comment