PPT: Two Port Networks | CSAT Preparation - UPSC PDF Download

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Two Port Analysis
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Two Port Analysis Understanding Two-Port Networks
Definition
An electrical circuit with two 
pairs of terminals forming 
ports for connecting to 
external circuits.
Port Condition
Current entering one terminal 
must equal current leaving the 
other terminal of the same 
port.
Function
Serves as interfaces where 
the network connects to other 
networks, allowing signal input 
and output.
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Two Port Analysis Understanding Two-Port Networks
Definition
An electrical circuit with two 
pairs of terminals forming 
ports for connecting to 
external circuits.
Port Condition
Current entering one terminal 
must equal current leaving the 
other terminal of the same 
port.
Function
Serves as interfaces where 
the network connects to other 
networks, allowing signal input 
and output.
One-Port vs Two-Port Networks
One-Port Network
A two-terminal electrical network where current enters 
through one terminal and leaves through another.
Examples: resistors, inductors, capacitors
Contains a single pair of terminals (1 & 1')
Two-Port Network
A four-terminal network with two pairs of terminals 
forming two ports.
Port1: terminals 1 & 1'
Port2: terminals 2 & 2'
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Two Port Analysis Understanding Two-Port Networks
Definition
An electrical circuit with two 
pairs of terminals forming 
ports for connecting to 
external circuits.
Port Condition
Current entering one terminal 
must equal current leaving the 
other terminal of the same 
port.
Function
Serves as interfaces where 
the network connects to other 
networks, allowing signal input 
and output.
One-Port vs Two-Port Networks
One-Port Network
A two-terminal electrical network where current enters 
through one terminal and leaves through another.
Examples: resistors, inductors, capacitors
Contains a single pair of terminals (1 & 1')
Two-Port Network
A four-terminal network with two pairs of terminals 
forming two ports.
Port1: terminals 1 & 1'
Port2: terminals 2 & 2'
Network Variables and Parameters
Four Variables
V1, V2, I1, and I2 exist in a two-port network.
Variable Classification
Two variables are chosen as independent 
and two as dependent.
Parameter Sets
Six possible pairs of equations yield 
different parameter sets.
Coefficients
The coefficients of independent variables 
are called parameters.
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Two Port Analysis Understanding Two-Port Networks
Definition
An electrical circuit with two 
pairs of terminals forming 
ports for connecting to 
external circuits.
Port Condition
Current entering one terminal 
must equal current leaving the 
other terminal of the same 
port.
Function
Serves as interfaces where 
the network connects to other 
networks, allowing signal input 
and output.
One-Port vs Two-Port Networks
One-Port Network
A two-terminal electrical network where current enters 
through one terminal and leaves through another.
Examples: resistors, inductors, capacitors
Contains a single pair of terminals (1 & 1')
Two-Port Network
A four-terminal network with two pairs of terminals 
forming two ports.
Port1: terminals 1 & 1'
Port2: terminals 2 & 2'
Network Variables and Parameters
Four Variables
V1, V2, I1, and I2 exist in a two-port network.
Variable Classification
Two variables are chosen as independent 
and two as dependent.
Parameter Sets
Six possible pairs of equations yield 
different parameter sets.
Coefficients
The coefficients of independent variables 
are called parameters.
Two Port Network Parameters
Z Parameters
Impedance parameters relating voltages to 
currents.
Y Parameters
Admittance parameters relating currents 
to voltages.
T Parameters
Transmission (ABCD) parameters for 
cascaded networks.
h Parameters
Hybrid parameters commonly used for 
transistor modeling.