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# hw000 - R TH looking into terminals a-b-a b R 1 R p R C R E...

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ECE 340 Electronics I Homework #000 (Due: 8/29/2011) University of Illinois at Chicago Fall 2011 Problem 1 Use voltage division and series/parallel reduction of resistors to determine voltages V x and V y in terms of the source voltage V s and the resistances. + + + - - - V x V y V s R 1 R 2 R 3 R 4 R 5 R 6 Problem 2 Use current division and series/parallel reduction of resistors to determine currents I 2 and I 3 in terms of the source current I s and the resistances. I 2 I 3 I s R 1 R 2 R 3 R 4 R 5 Problem 3 Find voltages V 1 and V 4 (in terms of V s and the resistances) using each of the following methods: (a) use voltage division and series/parallel combination of resistors. (b) use mesh analysis to determine I 1 and I 2 , then V 1 = R 1 I 1 and V 4 = R 4 I 2 . (c) use nodal analysis to find V a , V b and V c , then V 1 = V a - V b and V 4 = V c . + + + - - - I 1 I 2 V s R 1 R 2 R 3 R 4 V a V b V c V 1 V 4 Dr. Vahe Caliskan 1 of 3 Posted: August 25, 2011

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ECE 340 Electronics I Homework #000 (Due: 8/29/2011) University of Illinois at Chicago Fall 2011 Problem 4 For the following circuit, find the Thevenin equivalent circuit looking into terminals a - b . + - a b R 1 R 2 R 3 R 4 I s V s Problem 5 For the following circuit, find the Thevenin equivalent resistance
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Unformatted text preview: R TH looking into terminals a-b . +-a b R 1 R p R C R E V x g m V x Problem 6 For the following circuit, ±nd the Thevenin equivalent resistance R TH looking into terminals a-b . +-a b V s R s R p R C R E I x g m I x Dr. Vahe Caliskan 2 of 3 Posted: August 25, 2011 ECE 340 Electronics I Homework #000 (Due: 8/29/2011) University of Illinois at Chicago Fall 2011 Problem 7 For the ampli±er circuit shown, ±nd the voltage gain A = V o /V s . + +--V s R s V o r B R C R E I x βI x Problem 8 For the ampli±er circuit shown, ±nd the following characteristics: (a) voltage gain A = V o /V s (b) input resistance R in ( R TH looking into input terminals a-b ) (c) output resistance R out ( R TH looking into output terminals c-d with V s = 0) + + +---a b c d R s r B R C R E V x αV x V s V o Dr. Vahe Caliskan 3 of 3 Posted: August 25, 2011...
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