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# pract_exb - NAME NETID MIDTERM EXAM 1(Closed book Solutions...

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NAME ____________________________________ NETID _______________ MIDTERM EXAM 1 (Closed book) Solutions ECE 442 March 2, 2006 7:00 p.m. – 8:30 p.m. Instructions : Write your name, and NetID where indicated. You are allowed to use a calculator. This examination consists of 5 problems. Problem 1 Problem 2 Problem 3 Problem 4 Problem 5 Total

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- 2 - Formula Sheet DIODE / (1 ) DT VV DS II e =− , where 26 mV B T kT V q == BIPOLAR (NPN forward active I B >0, V CE >V CE , sat ) // 1 B ET B CE CS S A V e I e V ⎛⎞ =⋅ + ⎜⎟ ⎝⎠ where 26 mV B T V q CE I I α = 1 CE CB B A V I V β + 1 = + MOSFET (long channel model equations) Define V DSP = V GS -V T , where V T is the threshold voltage NMOS PMOS Triode Region (Linear) & , GS T DS DSP VVVV >< 2 '( ) 2 DS DG S T D S V W Ik V V V L Active Region (Saturation) & , GS T DS DSP >≥ [] 2 ' () 1 2 D GS T DS Wk I V L λ + Body Effect 22 TT o S B F F V γ φφ =+ + , 0 GS T D I ≤= Triode Region (Linear) & , GS T DS DSP < > 2 ) 2 DS S T D S V W V V V L Active Region (Saturation) & , GS T DS DSP < 2 ' 1 2 D GS T DS I V L Body Effect ( ) o S B F
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pract_exb - NAME NETID MIDTERM EXAM 1(Closed book Solutions...

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