Principles of Operational Amplifiers and Application to
Control a Light Source
Third Report for
ECE 333 Electronics II
Submitted by: Jillian A. Bibbins
11351345
October 7, 2014
The University of Alabama
Department of Electrical and Computer
Engineering
Ab
ECE 333 Fall 2011
Homework #7
Problem set due Tuesday, October 18, 2011.
1. Design a Widlar current source such that:
IO=1 mA, IREF=11 mA. Assume both transistors have the same characteristics and that
VBE(on)~0.7 V. Use supply voltages of V+=15 V and V-=
ECE 333 — Fall 2011
Homework #5
Problem set due Tuesday, October 4, 2011.
In problems 1) and 2), assume all transistors are in forward active mode, have the same gain, and
have the same ﬁnite Early effect. Determine the analytical expressions for the inpu
ECE 333 Fall 2011
Homework #9
Problem set due Tuesday, November 8, 2011.
1. In class, we saw that there were two ways of small-signal biasing a differential amplifier, in
common mode or differential mode. In each, the input nodes were biased using a singl
ECE 333 — Fall 2011
Homework #10
Problem set due Thursday, November 17, 2011.
1. This is a neat problem that leads you to design a circuit
based on a set of requirements. It combines current
source and diff-amp.
Design the circuit shown on the right assum
Name: Grade: /75
ECE 333 — Fall 2010
Midterm Exam #1
Notes:
0 This is a closed book exam. No formula sheet or other support is allowed. No calculator is needed either.
0 The point value of each problem is an indication of the maximum amount of time (in mi
ECE 333 Fall 2010
Homework #2
Problem set due Tuesday, September 7, 2010.
Assume all transistors are in forward active mode, have the same gain, and have the same finite
Early effect. Determine the input resistance (10 pts), output resistance (10 pts), an
ECE 333 Fall 2010
Homework #3
Problem set due Tuesday, September 14, 2010.
Assume all transistors are in forward active mode, have the same gain, and have the same finite
Early effect. Determine the input resistance (10 pts), output resistance (10 pts), a
ECE 333 Fall 2010
Homework #1
Problem set due Tuesday, August 31, 2010.
All npn transistors have VBE(on)=0.7 V and VCE(sat)=0.2 V. All pnp transistors have
VEB(on)=0.7 V and VEC(sat)=0.2 V. All transistors have =100. For each circuit, determine the
Q-poin
ECE 333 Fall 2011
Homework #3
Problem set due Tuesday, September 13, 2011.
For all 10 circuits below (there is no. 6), assume that the output node is the collector of the
transistor: (i) draw their small-signal equivalent circuits, (ii) determine an analy
ECE 333 Fall 2011
Homework #4
Problem set due Tuesday, September 27, 2011.
In problems 1) and 2), assume all transistors are in forward active mode, have the same gain, and
have the same finite Early effect. Determine the analytical expressions for the in
ECE 333 — Fall 2011
Homework #1
Problem set due Tuesday, August 30, 2011.
Review and become proﬁcient with the following prerequisites ofECE 333: Ohm’s law, KVL,
KCL, Thevenin and Norton equivalent circuits, and bipolar junction transistors.
In the circui
ECE 333 - Fall 2009
Homework #13
Problem set due Thursday, December 3, 2009.
1.
(100 pts) Consider the circuit at right. Both transistors
have Early effect.
(a) Determine an expression for the loop gain using the broken
loop method.
(b) Plot the Bode plot
ECE 333 Fall 2011
Homework #2
Problem set due Tuesday, September 6, 2011.
Review and become proficient with the Chapter 5 of the textbook to be able to find the Q-point
of transistor circuits.
All npn transistors have VBE(on)=0.7 V and VCE(sat)=0.2 V. All
Basic Operational Amplifier Circuits and
Applications
Fourth Report for
ECE 333 Electronics II
Submitted by
Jillian A. Bibbins
11351345
The University of Alabama
Department of Electrical and Computer
Engineering
October 14, 2015
Abstract
1
The purpose of
Basic Operational Amplifier Circuits and Applications
Third Report for
ECE 333 Electronics II
Submitted by
Jillian A. Bibbins
11351345
The University of Alabama
Department of Electrical and Computer
Engineering
January 5th 2015
Abstract
1
This project wil
Principles of Operational Amplifiers and Application to
Control a Light Source
Third Report for
ECE 333 Electronics II
Submitted by
Jillian A. Bibbins
11351345
The University of Alabama
Department of Electrical and Computer
Engineering
1
January 12th 2015
Bipolar Junction Transistor Multistage Amplifiers
Second Formal Report for
ECE 333 Electronics II
Submitted by
Jillian A. Bibbins
11351345
The University of Alabama
Department of Electrical and Computer Engineering
April 1th 2015
Abstract
This document pr
BJT Current Sources
Fifth Report for
ECE 333 Electronics II
Submitted by
Jillian A. Bibbins
11351345
The University of Alabama
Department of Electrical and Computer Engineering
February 26th 2015
1
Abstract
This project focused on constant current sources
Given parameters for npn BJT transistor:
VBE(on), typically 0.7 V
VCE(sat), typically 0.2~0.3 V
gain , typically 80-200
1/ Choose a mode (based on
experience, intuition, )
Baseemitter
Basecollector
Mode
Forward
VBE~VBE(on)
VCE~VCE(sat)
IB > 0 A
IC < .IB
S
Microelectronics
Circuit Analysis and Design
Donald A. Neamen
Chapter 7
Frequency Response
University of Alabama
1
ECE 333-Neamen Ch. 7.ppt
University of Alabama
2
ECE 333-Neamen Ch. 7.ppt
Small signal amplifiers
University of Alabama
3
ECE 333-Neamen Ch
Microelectronics
Circuit Analysis and Design
Donald A. Neamen
Chapter 11
Differential and Multistage Amplifiers
University of Alabama
1
ECE 333-Neamen Ch. 11.ppt
BJT Multistage Amplifier
Components:
pnps and npns!
Widlar multitransistor
current source
ECE285: Prog. for Electrical and Computer Engineers
Sample Exam 2
1. This will be a closed book/notes exam. No electronic resources will be allowed.
1. Which of the following is not true for arrays in C?
ANSWER: B
a) C stores arrays in row major form
b) T
ECE285: Programming for Electrical and Computer Engineers
Sample Exam 1
The exam will be closed book and closed notes. The following questions are representative of the
type of questions that will be on the exam. A sheet summarizing C language syntax will