TYPES OF FEEDBACK:
- Negative feedback
- Positive feedback.
"If the feedback signal is out of phase with feedback signal then feedback is called as negative feedback."
Amplifiers always give negative feedback.
Disadvantages:
Negative feedback reduces overall gain of amplifiers.
Advantages:
- Reduction in noise.
- Greater bandwidth
- Stability
- Higher input impedance
- Lower output impedance
- Linear operation
"If the feedback signal is in phase with feedback signal then feedback is called as negative feedback."
Advantages:
Increases the gain of amplifiers.
Disadvantages:
- Shorter bandwidth
- Instability.
- Lower input impedance
- Higher output impedance
Applications:
Use for design of Oscillator.
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