midterm_02

midterm_02 - ECE 137 A Mid-Term Exam February 15, 2002 Do...

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ECE 137 A Mid-Term Exam February 15, 2002 Do not open exam until instructed to. Closed book: Crib sheet and 1 page personal notes permitted There is one problem on this exam (parts A-F) , and your have 50 minutes. Use any and all reasonable approximations (5% accuracy is fine. ) , AFTER STATING THEM. Name: _______________________ 1
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Problem 1, 100 points You will be working on the circuit below: Vgen Rgen Rg1 Rss1 Css Rdd1 Ree2 RL +Vcc -Vee Q1 Q2 Vin Vout Q1 : =0.5 Volts. = 3 mA/V, th V g ox sat W C v ) 20 /( 1 Volts = λ Q2: beta=100, Va=200 Volts. Vcc=+3.3 volts. -Vee=-3.3 volts Rgen=1 MegOhm RL=1000 Ohm Rg1=10 MegOhm Rss1= ??? Rdd1= ??? Ree2= ??? Css is very big and has negligible AC impedance. 2
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DC bias. Q1 is to be biased with 2 mA source current. Q2 is to be biased with 10 mA collector current The circuit is to be biased such that the DC emitter voltage of Q2 is zero volts. Find:
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midterm_02 - ECE 137 A Mid-Term Exam February 15, 2002 Do...

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