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. |
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