This article is about **TRANSFER FUNCTIONS OF CONTROL SYSTEM** and focusing to the engineers, technicians and supervisors. You will find lot of documents related to this article. Just navigate our website www.paktechpoint.com and find more articles. **Please! **Do not forget to subscribe our **You tube** channel also. Thanks in Advance. __PLEASE SUBSCRIBE OUR PAKTECHPOINT YOUTUBE CHANNEL__

## TRANSFER FUNCTIONS OF CONTROL SYSTEM

**CONTENTS TO PROCEED**

- System
- Classification of systems
- System analysis
- Mathematical model
- Linear time invarient system
- Transfer function (definition, properties, example)
- Block diagrams ( elements, advantages, example)
- Rules for block diagram reduction + example

**SYSTEM**

**CLASSIFICATION OF SYSTEMS**

- continuoustime or discretetime.
- linear or nonlinear.
- time invariant or time varying.
- causal or noncausal.
- stable or unstable.
- deterministic or nondeterministic.

### Discrete systems

**Linear and Non-Linear Systems**

### Causal and Non-Causal Systems

### Stable and Unstable Systems

### Deterministic and Stochastic Systems

## CONTROL SYSTEM ANALYSIS AND DESIGN

**MATHEMATICAL APPROACH**

**SIMULATION OR EXPERIMENTAL APPROACH**

### MATHEMATICAL MODEL

### LINEAR TIME INVARIENT SYSTEM

### PRINCIPLE OF SUPER POSITION

### LINEAR TIMEINVARIANT SYSTEM DESCRIPTION

## THE TRANSFER FUNCTION

The term is often used exclusively to refer to linear, time invariant systems (LTI). Most real systems have non linear input/output characteristics, but many systems, when operated within nominal parameters have behavior that is close enough to LTI system theory an acceptable representation of the input/output behavior.

**MATHEMATICAL REPRESENTATION**

### PROPERTIES OF TRANSFER FUNCTION

**Components of a Transfer Function:**

**EXAMPLE**

### Block Diagrams:

##### Please read also: MEASUREMENT SYSTEMS OF AUTOMATION AND PROCESS CONTROL SYSTEM

**ELEMNTS OF BLOCK DIAGRAM**

**BLOCK **

**BLOCK**

**SIGNAL**

**SUMMING POINT OR JUNCTION:**

• The summing point is represented by a circle. The signal out of the summing junction is equal to the sum of signals into the junction, with the sign of each component determined by the sign placed near the arrow head of the

**BRANCH POINT:**

### ADVANTAGE OF BLOCK DIAGRAM

**PROCEDURE FOR DRAWING A BLOCK DIAGRAM:**

**RULES FOR BLOCK DIAGRAM REDUCTION: **

### EXAMPLES OF DERIVING TRANSFER FUNCTION AND BLOCK DIAGRAMS

Pingback: Derivation of standard 4-20 mA equation and 4-20 mA formula - PAKTECHPOINT

Pingback: Fundamentals of Process Control & Automation? Explain with Examples of control system? - PAKTECHPOINT

Pingback: WHAT IS VFD AND ITS PRINCIPLE, WHY VFD IS USED - PAKTECHPOINT

Pingback: ARAMCO STANDARD SAES-P-119 SUBSTATION - PAKTECHPOINT

Pingback: COMPLETE OVERVIEW OF ADVANCE DCS SYSTEM - PAKTECHPOINT

Thanks for every other informative blog. The place else could I get that kind of info written in such a perfect manner? I’ve a undertaking that I’m simply now working on, and I’ve been on the glance out for such information.

My family every time say that I am wasting my time here at net,but I know I am getting experience daily by reading such pleasant articles.

Love Diagrams and all about them !