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Questions about circuits - Electronics | ECE 2204, Exams of Basic Electronics

Virginia Polytechnic Institute and State University (Virginia Tech)Basic Electronics

Material Type: Exam; Class: Electronics; Subject: Electrical & Computer Engineer; University: Virginia Polytechnic Institute And State University; Term: Spring 2011;

Typology: Exams

2010/2011

Uploaded on 10/31/2011

koofers-user-gm9
koofers-user-gm9 🇺🇸

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J (ov-6 (fo) Ces 1794) ECE 2204 (Spring 2011) tien - 00-33 R 200 ‘s Test #5 Question #1 (50 points): The transistor shown in Circuit #1 with device parameters K,’ = 25 pA/V? and Vry = 2 V is biased to operate in the triode region. Suppose that (Vgs — Vy) > 5V ps must be satisfied to assure the validity of the expression for R,, given in the textbook. What is the smallest allowable gate-width to gate-length ratio for this transistor? Question #2 (50 points): A particular application requires that the N-MOSFET shown in Circuit #2 operates in saturation with ip = 9 mA. The transistor properties are as follows: K,’ = 25 pA/V?, W/E =40, and Voy = -2 V. Calculate the appropriate value of Rz and determine the largest possible value of Rp. Crcud ] Creu #2 | Vopz btn Vagp= + 20V Re lke fee April 7, 2011