Homework Assignment 6 Solution

# Homework Assignment 6 Solution - NATIONAL UNIVERSITY of...

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1 NATIONAL UNIVERSITY of SINGAPORE Department of Electrical and Computer Engineering EE2005 – Electronics Homework Assignment #6 Solution (No need to hand in the homework assignment) 1. Assume the AC small signal parameters for BJT are g m,Qi , r π ,Qi , r o,Qi , and the AC small signal parameters for MOSFET are g m,Mj , r i,Mj , r o,Mj , where i and j are the corresponding device index. Write down the small signal AC driving point resistance (R x ) of the following configuration: Table 2 Configuration H 1 , 1 , 1 , 1 M o D M o M m x r R r g R + = Table 2 Configuration G ( ) S M m M o x R g r R 1 , 1 , 1 + = Table 2 Configuration B 1 , M o x r R = 10V R D R x Hint: No body effect M 1 10V R S R x Hint: No body effect M 1 R x M 1 R S C S R D R x M 1 R S R x M 1 R x M 1

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2 Table 1 Configuration G () [] + + + = S Q Q E Q S Q m Q o x R r r R r R g r R 1 , 1 , 1 , 1 , 1 , // 1 π Table 1 Configuration E ( ) E Q m Q S x R g r R R 1 , 1 , 1 + = π Table 1 Configuration F
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## This note was uploaded on 10/24/2011 for the course ELECTRICAL ee2021 taught by Professor Tan during the Spring '11 term at National University of Singapore.

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Homework Assignment 6 Solution - NATIONAL UNIVERSITY of...

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