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Different Types of Interconnections of Two Port Networks

Series Connection

V1 = (Z11A + Z11B) I1 + (Z12A + Z12B) I2


V2 = (Z21A + Z21B) I1 + (Z22A + Z22B) I2

 

in matrix form, 678.png 


Cascade Connection

For network X,
V1X = AX V2X –BXI2X

IIX = CX V2X –DX I2X


and for network Y,
V1Y = AY V2Y – BYI2Y

I1Y = CYV2Y –DYI2Y

683.png 


Parallel Connection

For network A,
I1A = Y11A V1A + Y12A V2A

I2A = Y21A V1A + Y22A V2A


and for network B,
I1B = Y11B V1B + Y12B V2B

I2B = Y21B V1B +Y22B V2B

I1 = (Y11A + Y11B) V1 + (Y12A + Y12B) V2

I2 = (Y21A + Y21B) V1 + (Y22A + Y22B) V2

688.png 





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