PDD205A1121 3BHE025335R1121 Control board module

In the closed-loop control system, no matter the change of the input signal, or the influence of interference,

or the change of the internal parameters of the system, as long as the controlled quantity deviates from the specified

value, it will have the corresponding effect to eliminate the deviation. Therefore, the closed-loop control has strong

ability to suppress interference. Compared with open-loop control, the system is not sensitive to parameter changes,

so less precise components can be selected to form a more precise control system to obtain satisfactory dynamic characteristics and

control accuracy. However, the use of feedback device needs to add components, which is relatively high cost and also

increases the complexity of the system. If the structural parameters of the system are not properly selected, the control

process may become very poor, and even appear unstable situations such as oscillation or divergence. Therefore, how to

analyze the system, reasonably choose the structure and parameters of the system, so as to obtain satisfactory system

performance, is the automatic control theory must study and solve the problem.
PDD205A1121 3BHE025335R1121 Control board module The main control board