Consider the following statements:1. The effect of feedback is to reduce the system error2. Feedback increases the gain of the system in one frequency range but decreases in another.3. Feedback can cause a system that is originally stable to become unstableWhich of these statements are correct.

Nonlinear Systems topics include: Construction of phase trajectories, stability of nonlinear system and stability analysis by describing the functions. A nonlinear control system is a control system where nonlinearity plays a significant role. Nonlinearity can occur in the controlled process (plant) or in the controller itself.  A nonlinear system is a system in which the change of the output is not proportional to the change of input. A system is said to be nonlinear if it violates the homogeneity and superposition principles.  There are two classes of nonlinear control: discontinuous and... Show more

Nonlinear Systems topics include: Construction of phase trajectories, stability of nonlinear system and stability analysis by describing the functions.

A nonlinear control system is a control system where nonlinearity plays a significant role. Nonlinearity can occur in the controlled process (plant) or in the controller itself. 

A nonlinear system is a system in which the change of the output is not proportional to the change of input. A system is said to be nonlinear if it violates the homogeneity and superposition principles. 

There are two classes of nonlinear control: discontinuous and continuous. The discontinuous methods include on-off and three state devices. 

A common method of controlling a non-linear system involves linearizing the system about an operating point, and then using linear feedback control methods to design the controller.

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