L13_two_port

L13_two_port - I 2 I 1 + V 1-+ V 2-Two-Port Network 1 11 1...

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Two Port Network ESC102 : Introduction to Electronics A.R. Harish Dept. of EE, IIT Kanpur Aug 19, 2010
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Techniques for Coping With Complexity: ABSTRACTION An abstract representation is a simplified representation that has appropriate level of detail for the problem being addressed. V t1 R t1
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Circuit Transformation allows us to apply results derived for simple circuits to more complicated circuits as well. Maximum Power Transfer for dc circuits R L R V S L R R = 2 max 4 S L L V P R = R L Resistors and Sources R L V t R t L t
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C V t R t ( ) ( ) { (0 ) ( )} t RC C C C C v t v v v e - + = ∞ + - ∞ C Linear Circuit
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How do we build a simplified representation of only this portion of the circuit? Thevenin or Norton Theorems are not sufficient.
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Two-Port Networks I 2 I 1 + V 1 - + V 2 - Two-Port Network Port: A pair of terminals through which a signal can enter/leave the network Constraints on analysis: 1. Linear elements only (R,L,C, dependent sources,. .) 2. No independent sources or stored energy inside the network I 1 I 2 No matter how complicated is the circuit inside the two-port network, it can be represented by only four elements !
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Unformatted text preview: I 2 I 1 + V 1-+ V 2-Two-Port Network 1 11 1 12 2 V z I z I = + 2 21 1 22 2 V z I z I = + Z or Impedance Parameters I 1 + V 1-I 2 Z 11 +-z 12 I 2 +-Z 22 z 21 I 1 + V 2-1 1 11 12 21 22 2 2 V I z z z z V I = Two-Port Network + V 1-+ V 2-I 2 I 1 =0 1 2 22 2 I V z I = = 1 1 12 2 I V z I = = 1 11 1 12 2 V z I z I = + 2 21 1 22 2 V z I z I = + + V 2-Two-Port Network I 1 I 2 =0 + V 1-2 1 11 1 I V z I = = 2 2 21 1 I V z I = = I 2 I 1 + V 1-+ V 2-Two-Port Network I 2 I 1 + V 1-+ V 2-Two-Port Network 1 11 1 12 2 I y V y V = + 2 21 1 22 2 I y V y V = + Y or Admittance Parameters + V 1-+ V 2-I 1 y 12 V 2 y 11 y 22 y 21 V 1 I 2 1 1 11 12 21 22 2 2 I V y y y y I V = I 2 I 1 + V 1-+ V 2-Two-Port Network 1 11 1 12 2 I y V y V = + 2 21 1 22 2 I y V y V = +...
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This note was uploaded on 12/08/2010 for the course EE ESC102 taught by Professor A.r.harish during the Spring '10 term at IIT Kanpur.

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L13_two_port - I 2 I 1 + V 1-+ V 2-Two-Port Network 1 11 1...

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