Closed loop control system features
The closed-loop control system has the following characteristics in control: since the feedback amount of the output signal is compared with the input quantity to generate the deviation signal, the deviation signal is used to control or adjust the output quantity, so the output of the system can automatically track the input quantity, minus Small tracking error, improve control accuracy and suppress the influence of disturbance signals. In addition, the closed-loop control system consisting of negative feedback has other advantages: the introduction of the feedback path makes the system insensitive to changes in component parameters in the forward path, thus making the system accurate for components in the forward path. The requirements are not high; the feedback effect can also make the entire system insensitive to certain nonlinear effects.