This system is a PID regulator. The output signal is modified in function of the input signal.
This system is composed of three parts :
- The left amplifier subtract the input value with the output value to calculate the error value.
- The three middle amplifier calculates the P, I and D effects.
- The right amplifier add the three last effect to calculate the output value.
The three effects are:
- P is the proportional effect : its value is the error value.
- I is the integral value of the error value.
- D is the derivate value of the error value.
The three PID effect are calculated with constant values named kp, ki, kd.
The signal equation is :
kp.e + ki.integral(e.dt) + kd.(de/dt)
Integral() is the integral value.
e is the error value.
To modify the regulator effect, you can adjust the resistors and capacitors values of the middle amplifier to modify the constant values. You can switch the oscillator and open the correction switch
