exam2 - EE321 Exam 2 Spring 2008 Write your name on the...

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EE321 Exam 2 Spring 2008 Write your name on the bluebook, and on the last sheet of this exam (which has a figure you will need). Turn in the bluebook and the last page of the exam. Assume that they will be separated so put your name on both. Notes: 1.) You must show work for credit. 2.) Getting 75% of problems 3-4 correct satisfies objective 4. 3.) Getting 75% of problems 5-6 correct satisfies objective 5. “If you want to win something, run 100 meters. If you want to experience something, run a marathon.” - Emil Zatopek
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VR Stepper Motor Problems 1.) 15 pts. Consider the torque versus position characteristics of a VR stepper shown on the last page, which you should tear out and put in your blue book, with your name on it in case it gets separated. Initialize the c-phase is energized and the position is as indicated (point 1). Then the position is stepped to the a-phase. Circle the resulting stable equilibrium point and mark with a 2. Then the c-phase is excited. Circle and mark the stable equilibrium point with a 3. Then the a-
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This note was uploaded on 09/22/2011 for the course ECE 321 taught by Professor Staff during the Spring '08 term at Purdue University-West Lafayette.

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exam2 - EE321 Exam 2 Spring 2008 Write your name on the...

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