Difference RC phase shift oscillator & Wein bridge oscillator
Category: Electrical Articles
2 Dec 14
|
RC phase shift oscillator |
Wein bridge oscillator |
| This oscillator is used for low frequency range. | This oscillator is used for low frequency range since both are RC oscillator. |
| Feedback network provide 180° phase shift. | Feedback network do not provide 180° phase shift. |
| Op-amp is used in inverting mode. | Op-amp is used in non-inverting mode. |
| Op-amp introduces 180° phase shift. | Op-amp does not introduce 180° phase shift. |
| Amplifier gain |A| >=29 | Amplifier gain |A| >= 3 |
| 3RC section in feedback. | Low frequency range since both is RC oscillator. |
| Difficult to adjust frequency variation. | Easy adjustment of frequency by varying both capacitors. |
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