| The parameter of comparison | Positive feedback | Negative feedback |
|---|---|---|
| The overall phase shift | 0 or 3600 | 1800 |
| Feedback signal and the input signal. | In phase. | Out of phase. |
| Input voltage. | Increase due to feedback. | Decrease due to feedback. |
| Out voltage. | Increase due to feedback. | Diesel oil is not blended. |
| Voltage gain. | Increase due to feedback. | Decrease due to feedback. |
| Stability. | Becomes poor as feedback increase. | Becomes better as feedback decrease. |
| Noise | Increase with feedback. | Decrease with feedback. |
| Bandwidth | Decrease with positive feedback. | Increase with negative feedback. |
| Application | Oscillators Schmitt trigger. | amplifier. |