If the feedback signal is of opposite polarity to the input signal, then the negative feedback results. While
negative feedback results in reduced overall voltage gain, following improvements are obtained, :
(a)Higher input impedance
(b) Better stabilized voltage gain
(c) Improved frequency response
(d) Lower output impedance
(e) Reduced noise
(f) More linear operation
Types of Feedback Connections.
(i) Voltage -series feedback
(ii) Voltage - shunt feedback °
(iii) Current - series feedback
(iv)Current - shunt feedback.
negative feedback results in reduced overall voltage gain, following improvements are obtained, :
(a)Higher input impedance
(b) Better stabilized voltage gain
(c) Improved frequency response
(d) Lower output impedance
(e) Reduced noise
(f) More linear operation
Types of Feedback Connections.
(i) Voltage -series feedback
(ii) Voltage - shunt feedback °
(iii) Current - series feedback
(iv)Current - shunt feedback.
No comments:
Post a Comment