## State Space Analysis Control System

State Space Analysis State Space Analysis: The Transfer function approach used to study the behavior of linear time-invariant (LTI) control systems use the time domain or frequency domain methods. In…

## Nyquist stability criterion

Nyquist stability criterion is based on the principle of argument which states that if there are P poles and Z zeros of the transfer function enclosed in s-plane contour, then the corresponding GH plane contour will…

## Difference between transfer function & state-space

Transfer function & State-space Transfer function & State-space: In Control system engineering there are 2 approaches to the analysis & design of the control system: 1. The transfer function or…

## Bode Plot in Control System

Bode Plot The Bode plot is a frequency response plot of the sinusoidal transfer function of a system. A Bode plot consists of two graphs. One is a plot of…

## Difference between Time Domain Vs Frequency Domain Analysis

Time Domain Analysis Vs Frequency Domain Analysis In this post, the major differences are shown between Time Domain Analysis Vs Frequency Domain Analysis. Before that, some short definitions of Time…

## Frequency Response Analysis in control system

Frequency Response Analysis Definition of Frequency Response Analysis: The steady-state response of a system to a purely sinusoidal input is defined as the frequency response of a system. In such…

## Root Locus Technique

Root Locus Technique The root locus technique was introduced by W. R. Evans in 1948. This is a graphical method, in which the movement of poles in the s-plane is…

## Routh-Hurwitz Stability criterion

Routh-Hurwitz Stability criterion The Routh-Hurwitz Stability criterion gives the information on the absolute stability of a system without any necessity to solve for the closed-loop system poles. This method helps…

## Concept of Stability | Control System

Concept of Stability Concept of Stability: A system is said to be stable if it does not exhibit large changes in its output for a small change in its input,…

## Signal Flow Graph and Mason’s Gain Formula

Signal Flow Graph (SFG) The signal flow graph is used to represent the control system graphically and it was developed by S.J. Mason.      A signal flow graph is a diagram…