ECE 81_hw15_solutions

ECE 81_hw15_solutions - ECE 81 Lehigh University 03/26/2007...

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ECE 81 Lehigh University 03/26/2007 HW #15 ± P14.22: ¾ power gain : G = A i A v = P out /P in A i = I out /I in = A v *Z in /R L A v = V out /V in Æ Inverting amplifier: A v = - R 2 /R 1 A i = (- R 2 /R 1 )*( Z in )/ R L = (- R 2 /R 1 )*( V in /I in )/ R L = (- R 2 /R 1 )*( R 1 )/ R L Æ Non-inverting amplifier: A v = 1 + R 2 /R 1 A i = (1 + R 2 /R 1 )*( Z in )/ R L = (- R
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This homework help was uploaded on 04/07/2008 for the course ECE 081 taught by Professor Frey during the Spring '07 term at Lehigh University .

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ECE 81_hw15_solutions - ECE 81 Lehigh University 03/26/2007...

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