Difference Between Positive and Negative Feedback

 

Comparison Chart

Basis for Comparison	Positive Feedback	Negative Feedback
Also called as	Regenerative feedback	Degenerative feedback
The relation between input and output	In phase	Out of phase
Overall gain	Greater than the gain of the system where feedback is not present.	Smaller than the gain of the system where feedback is absent.
Effective input	Sum of applied input and fed-back signal.	The difference between applied input and the fed-back signal
The transfer function of the system with respective feedback
Stability	Less	Comparatively more
Phase shift	0° or 360°	180°
Feedback is taken from	Non-inverting terminal of the op-amp	Inverting Terminal of op-amp
Sensitivity	Low	High
Use	In oscillators.	In amplifiers.