summer 2003 3220 Final Exam

# summer 2003 3220 Final Exam - Name: _ SSN:_ Summer2003...

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Name: _______________________________ Summer 2003 SSN: _________________________             EE 3220 Final Exam 1. Find the bias voltages and currents in the circuit below. 2. Sketch the output for the class B amplifier circuit below.

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3. Consider the differential amp below. Find I o , r n  , and the DC bias point and the DC power  absorbed by all of BJT’s.     All  β  = 100,  r o3  = 25 k . V CC  = 12.7 volts   I o  = _______________________ V EE  = -12.7 volts r n  = _______________________ R C  = 5 k V OUT1  = _____________ R A  =  500  V OUT2  = _____________ R B  = 5 k P Q1  = _______ R E  = 10 k P Q2  = _______ P Q3  = _______
4. Design a BJT current source with a BJT current mirror that will produce I o  = 1 mA. 5. A noninverting op-amp is made from an op-amp with A o  = 10 6 .  R 2  = 47 k  and R 1  = 5.6  k .   What kind of amplifier is it? What are the values of the feedback factor  β  and the  closed loop gain A

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## This note was uploaded on 01/25/2012 for the course EE 3220 taught by Professor Audiffred during the Spring '06 term at LSU.

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summer 2003 3220 Final Exam - Name: _ SSN:_ Summer2003...

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