Difference between open loop and closed loop control system
What you will learn here about open loop and closed loop control system
- Difference between open loop and closed loop control system
Difference between open loop and closed loop control system
Key important Differences between open loop and closed loop control system is given below
| Parameter | Open loop control system | Closed loop control system |
|---|---|---|
| 1)Defination | Open loop system is the control system where output OR control action depends only on the input signal | In closed loop system is the control system where output OR control action depends on input signal as well as output response |
| 2)Block diagram |  |  |
| 3)Error Detector | Error Detector is not present | Error Detector is present |
| 4)Feedback | Feedback is not present | Feedback is present |
| 5)Accuracy | Less accurate | More accurate |
| 6)Stability | Stable | Less stable |
| 7)Sytem Disturbance | System disturbance has more effect on the output of open loop control system | System disturbance has very less effect on the output of closed loop control system |
| 8)Cost | Cheap | Costly |
| 9)Bandwidth | Small | Large |
| 10)Design | Open loop system is easy to design as there is no feedback | Closed loop system is complex to design as there is feedback |
| 11)Examples | Traffic signal, Washing machine, Bread toaster etc | Water level control,Automatic electric iron, Speed control of DC motor etc |
