Two report

CALIFORNIA STATE UNIVERSITY, NORTHRIDGE

DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING

SPRING 2015

ECE101 – INTRODUCTION TO ELECTRICAL ENGINEERING

FINAL PROJECT

INDIVIDUAL PROJECT

Your individual project will be comprised of you performing something called “reverse engineer-

ing”. Your assignment is to find a technical device or system that is either broken or is no longer

in use. This device or system is to be opened and examined for all components that ares con-

nected inside the package. Your task is to observe these components, make a list of them, and

then speculate on the role of each as how they worked together to give the device or system its

operational characteristics. Do not perform any research on your item or make any attempt to fix

or repair it. These activities shall be written in a report that is due in my office or JD4509 by 4pm

May 13, 2015. You may email the report as long as I receive it prior to the deadline for submis-

sion. The report shall be written in the form discussed in class and can be found on our course

moodle site.

GROUP PROJECT

The group project is to simulate and build the following amplifier circuit shown on the next page.

Each group shall have no more than 4 members and have the following tasks:

Team Member 1 – Circuit Simulation

Team Member 2 – Circuit Construction

Team Member 3 – Circuit Testing

Team Member 4 – Circuit Testing

Where there are less than 3 members in a particular group, one shall be responsible for circuit

simulation while the other is responsible for circuit construction and testing.

The following are the circuit and specifications:

011.00:

212121

522147205.11

765

4321







ACkHzFREQVVAMPLOFFSETv

kRkkRkkRk

kRkkRkkRkkRk

s

TPX ≡ Test Points. Measure and record waveform characteristics at these points.

All simulations shall be run according to the following specifications:

Analysis Type: Time Domain (Transient)

Run to time: 5ms (5 milliseconds)

Maximum step size: 10us (10 microseconds)

Input voltage source: VSIN

vs

+ 3

- 2

V+ 7

V-

4

6

1

5

µ741

+ 3

- 2

V+

7

V- 4

6

1

5

µ741

R1

R2

R6

R7

R5

D1

R3

R4

vo

-15V

+15V

V

-15V

+15V

TP1

TP2

TP3

TP4

0

The circuit shall be built or constructed on a breadboard with power, signal, and ground appro-

priately connected and applied. All resistors used shall be measured with the ohmmeter and rec-

orded. These same resistor values shall be used in the final circuit simulation. The amplitude of

all voltages in the circuit shall be measured and recorded during the bench testing. The use of cell

phone, smart phone, or regular digital cameras is encouraged, not required, for recording signals

from the oscilloscope. A report on all activities is due in my office or in JD4509 on Wednesday

May 13, 2015 by 4pm. The names of all group members should be printed and signed on the

first page (cover) of the report along with their responsible function(s). Good Luck and be crea-

tive!