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ECE 250 Exam 1 - Spring 2007: Electrical Engineering Problems - Prof. Marc E. Herniter, Exams of Electrical and Electronics Engineering

Rose-Hulman Institute of Technology (RHIT)Electrical and Electronics Engineering
Prof. Marc E. Herniter

The solutions manual for exam 1 of ece 250 - spring 2007. It includes problems related to circuit analysis, waveforms, transfer curves, and diode reverse bias capacitance.

Typology: Exams

Pre 2010

Uploaded on 08/18/2009

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ECE 250 Exam 1
Spring 2007
Name____________________
Section_______
CM____
Scores:
1)
2)
3)
4)
Total____________
I pledge on my honor that I did not copy any of this exam, and that this work is entirely my own.
Furthermore, I did not use PSpice during this exam.
____________________________________
pf3
pf4
pf5

Partial preview of the text

Download ECE 250 Exam 1 - Spring 2007: Electrical Engineering Problems - Prof. Marc E. Herniter and more Exams Electrical and Electronics Engineering in PDF only on Docsity!

ECE 250 Exam 1

Spring 2007

Name____________________

Section_______

CM____

Scores:

Total____________

I pledge on my honor that I did not copy any of this exam, and that this work is entirely my own.

Furthermore, I did not use PSpice during this exam.

____________________________________

Problem 1 (25 Points):

Plot Vo(t) and Vin(t) for the circuit below. Indicate numerical values for all breakpoints. Let Vin be a

±15 volt triangle wave.

R

1k

Vo

V DC = 3

R 1k

D

Vin

D

Vin

a) Sketch the waveforms using the graph below (17 Points):

Time

0s 0.2s 0.4s 0.6s 0.8s 1.0s 1.2s 1.4s 1.6s 1.8s 2.0s 0

b) Sketch the transfer curve, Vo versus Vin (8 Points).

Problem 3 (25 Points):

The circuit below is a voltage regulator:

Vout

R

0

Vzk = 5 V

D

0

Vin

0

RS

Vin is a DC voltage that can be anywhere from 8 to 10 volts. The load resistance R can be anywhere

from 5 to 1000 Ohms. Choose a single value for RS so that Vout will be constant at 5 V if Vin varies

between 8 and 10 Volts and R varies between 5 and 1000 Ohms.