Control system

A control system, for receiving an input signal and a feedback signal and generating an output signal, comprising:

• a first operational element, for receiving the input signal and the feedback proportion signal to generate a first operation signal;
• a feedback proportion controller, for receiving the feedback signal, and selectively generating the feedback proportion signal according to a first feedback gain or a second feedback gain;
• an integrator, for receiving the first operation signal and generating an integral signal;
• a feedforward proportion controller, for receiving the input signal, and selectively generating a feedforward proportion signal according to a first feedforward gain or a second feedforward gain;
• a second operational element, for receiving the feedforward proportion signal, the feedback proportion signal, and the integral signal, and generating the output signal different from the feedback signal;
• and
• a first multiplexer and a second multiplexer, wherein the first multiplexer selectively outputs the first feedback gain or the second feedback gain to the feedback proportion controller according to a first switching signal, and the second multiplexer selectively outputs the first feedforward gain or the second feedforward gain to the feedforward proportion controller according to a second switching signal;
• wherein the first feedback gain, the second feedback gain, the first feedforward gain and the second feedforward gain are set based on a control method selected from the group consisting of PI (Proportional Integral) type, PID (Proportional Integral Derivative) type, PDFF (Pseudo-Derivative Feedforward) type, PDF (Pseudo-Derivative Feedback) type or P (Proportional) type control methods.