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Spring08 exam1

# Spring08 exam1 - EE 310 Electronic Circuit Design I Spring...

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EE 310 Electronic Circuit Design I Spring 2008 Exam I Name: ____________________________ PSU ID Number: ___________________ Section Number: ___________________ Do not turn the page and begin this exam until the start time. 1. First, put your name, PSU ID and section numbers in the spaces above and on the exam answer form. 2. Please wait until you are instructed to begin the exam. Instructions: 1. This exam is closed book, closed notes. You may use a calculator but it may not be shared with anyone else during the exam. 2. Answers for the multiple choice problems should be entered on the provided answer form and in the exam booklet. 3. Time allotted is 120 minutes. 4. Good luck to all! Problems 1 20: __________ Problem 21: __________ Problem 22: __________ Problem 23: __________ Total: __________

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EE 310 Exam I Spring 2008 2/19/2008 2 Problems 1 5 [2 pts.ea.] An n-channel MOSFET has the i-v characteristics shown in the figure. For each of the listed circuit configurations, choose the answer that best describes the DC operating point or points for the MOSFET. 1. A MOSFET biased as a linear amplifier A v D y B w E z C x 2. A MOSFET operating in the nonsaturation region A v D v, w, and x B x E x, y, and z C z 3. A MOSFET switch having the smallest voltage drop across the device A v D y B w E z C x 4. A MOSFET switch in the “OFF” position A v D y B w E z C x 5. A MOSFET switch in the “ON” position and having the largest drain current A v D y B w E z C x
EE 310 Exam I Spring 2008 2/19/2008 3 Problem 6 [3 pts.] In the following circuit the diode is modeled as having a constant voltage drop V γ = 0.7 V when conducting (i.e., ON), and as an open circuit when OFF. Determine the minimum and maximum values of output voltage ( v O MIN and v O MAX ), if the input voltage, v I , is a 10-V peak-to-peak square wave. v O MIN , v O MAX values: A 0.7 V, +5 V D 2.5 V, +0.7 V B 0.7 V, +2.5 V E 5 V, +0.7 V C 0.7 V, +0.7 V Problem 7 [3 pts.] The unregulated voltage source in the above circuit ranges from 18 V to 24 V. The limiting resistor is chosen to be R i = 1 k Ω.

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Spring08 exam1 - EE 310 Electronic Circuit Design I Spring...

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