electrical4u.com logo Home MCQ Engineering Calculators Videos Basic Electrical Circuit Theories Electrical Laws Materials Batteries Illumination Generation Transmission Distribution Switchgear Protection Measurement Control System Utilities Safety Transformer Motor Generator Electrical Drives Electronics Devices Power Electronics Digital Electronics Biomedical Instrumentation

Admittance Parameters or Y Parameters

Published on 24/6/2017 & updated on 9/11/2018
HOME / CIRCUIT THEORY / TWO PORT NETWORK
In the case of impedance parameter or Z parameter we express voltage in the term of current by the following equations. Similarly, we can represent current in terms of voltage bt admittance parameters of a two port network. Then we will represent the current voltage relations as,

This can also be represented in matrix form as, Here, Y11, Y12, Y21 and Y22 are admittance parameter. Sometimes these are called as Y parameters. We can determine the values of the parameters of a particular two port network by making short-circuited output port and input port alternatively as follows. First let us apply current source of I1 at input port keeping the output port short circuited as shown below. In this case, the voltage across output prt will be zero since the terminals of the port is short circuited.

Related pages
Admittance Parameters or Y Parameters

Now, the ratio of input current I1 to input voltage V1 while output voltage V2 = 0, is This is called short circuit input admittance. The ratio of output current I2 to input voltage V1 while output voltage V2 = 0, is

This is referred as short circuit transfer admittance from input port to output port. Now, let us short circuit the input port of the network and apply current I2 at output port, as shown below. apply current output port In this case, This is called short circuit output admittance. This is called short circuit transfer admittance from input port to output port. So finally,




Please Rate this Article
4
⚑ 3 total
5
4
3
2
1


New Articles
More Articles on Circuit Theory
Circuit and NetworkCircuit TheoremCircuit AnalysisRL CircuitMatrixOp-ampRLC Circuit
Articles Categories
Write for Us
Home
Basic Electrical
Electric Transformer
Electric Generator
Electric Motor
Electrical MCQ
Engineering Calculators
Video Lectures
Electrical Generation
Electric Transmission
Switchgear
Electric Protection
Electrical Measurement
Electronics Devices
Power Electronics
Digital Electronics