Question

What is the Fullform of PID controller?

Answer 1

The full form of **PID controller** is **Proportional-Integral-Derivative controller**. It is a control loop feedback mechanism widely used in industrial control systems to regulate temperature, speed, pressure, and other process variables.

### Components:
1. **Proportional (P)**: This part depends on the current error. It adjusts the control output proportionally to the error. The larger the error, the larger the correction.
   
2. **Integral (I)**: This part is based on the accumulation of past errors. It helps eliminate the residual steady-state error by integrating the error over time.
   
3. **Derivative (D)**: This part predicts future errors based on the rate of change of the error. It helps reduce overshooting and improves system stability.

By adjusting these three parameters, PID controllers aim to maintain the process variable at a desired setpoint.

Answer 2

PID stands for Proportional-Integral-Derivative. It's a type of control loop feedback mechanism widely used in industrial control systems. Are you looking for details on how each component functions in the PID controller?