EELE 250: Circuits, Devices, and
Motors
Lecture 14
Assignment Reminder
Read 5.5-5.6, 6.2, AND 10.1 10.6 (diodes)
Practice problems:
P5.63, P5.68, P5.77, P5.85
P6.23, P6.26
P10.7, P10.8, P10.37
D2L Quiz #7 will be posted this week. It is due by 11AM

EELE 250: Circuits, Devices, and
Motors
Lecture 3
Resistor combinations
Series
Parallel
Delta
Series Resistance
Same current in both resistors, so total voltage
is IR1 + IR2 = I(R1 + R2) = IReq
Note that Req is always larger than the largest
series r

EELE 250: Circuits, Devices, and
Motors
Lecture 13
Assignment Reminder
Read 5.5-5.6, 6.2, AND 10.1 10.6 (diodes)
Practice problems:
P5.63, P5.68, P5.77, P5.85
P6.23, P6.26
P10.7, P10.8, P10.37
D2L Quiz #7 will be posted this week. It is due by 11AM

EELE 250: Circuits, Devices, and
Motors
Balanced three-phase circuits
Assignment Reminder
Read 5.7 AND 15.1 - 15.2
Lab notebooks due to TAs office by 2:00PM
today (628 Cobleigh)
Quiz #8 due by class time on Monday.
No lab next week.
Electrical Power D

EELE 250: Circuits, Devices, and
Motors
Op Amps
Assignment Reminder
Read 11.1 AND 14.1-14.3
Practice problems:
P11.4, P11.8
P14.9, P14.10, P14.11, P14.16
No quiz this week!
No lab this week!
Amplifiers
An amplifier creates a replica signal with a
g

EELE 250: Circuits, Devices, and
Motors
Electric Motors
Assignment Reminder
Read 16.1 - 16.3
Exam #3 is on Friday in class. Closed book, but
you may bring a single handwritten sheet of
notes, a pen/pencil, and a calculator.
Coverage is the Op Amp materi

EELE 250: Circuits, Devices, and
Motors
Electric Motors
Assignment Reminder
Read 16.1 - 16.3
No quiz this weekend. Exam 3 is 11/15/13.
Practice problems
P15.7, P15.12, P15.37, P15.62, P15.63,
P15.68 .
No class Monday (Veterans Day)
Work on Lab #8 nex

EELE 250: Circuits, Devices, and
Motors
Electric Motors
Assignment Reminder
No lab this week or next week.
Lab #9 (last) will be the last week of class.
Quiz #9 will be posted later this week (due by
class time on 11/25/13).
Final Exam on Tuesday, Dec

EELE 250: Circuits, Devices, and
Motors
Power Supply
Converting AC to DC
Rectifier concept: diodes
Half-wave rectifier
Full-wave rectifier
Half-wave rectifier
Diode conducts when vs(t) is
greater than voltage of capacitor.
When diode is off, capacitor

EELE 250: Circuits, Devices, and
Motors
Semiconductors
Semiconductor Junctions
Semiconductors are materials whose electrical
conductivity can be manipulated during
manufacturing by adding precise quantities of
dopant atoms.
Semiconductor junctions are m

EELE 250: Circuits, Devices, and
Motors
Inductance and Transformers
Assignment Reminder
Read Chapter 15
No quiz this week.
Practice problems:
P15.7, P15.12, P15.37, P15.62, P15.63, P15.68
Lab #8 next week: MEET AT THE POWER LAB,
EPS 119. Dont go to your

EELE 250: Circuits, Devices, and
Motors
Magnetic Field and Inductance
Assignment Reminder
Read Chapter 15
No quiz this week.
Practice problems assigned soon.
No lab this week. Lab #8 will be next week.
Magnetic Field Principles
A wire carrying a current

EELE 250: Circuits, Devices, and
Motors
Op Amps (cont.)
Assignment Reminder
Read 14.4 - 14.7
Practice Problems:
P14.19, P14.20, P14.22, P14.23, P14.32
Lab #7 next week. Note that there is a design
to be done in the prelab.
NO D2L Quiz this weekend
E

EELE 250: Circuits, Devices, and
Motors
Lecture 15
Assignment Reminder
Read 5.5-5.6, 6.2, AND 10.1 10.6 (diodes)
Practice problems:
P5.63, P5.68, P5.77, P5.85
P6.23, P6.26
P10.7, P10.8, P10.37
D2L Quiz #7 will be posted this week. It is due by 11AM

EELE 250: Circuits, Devices, and
Motors
Op Amps (cont.)
Assignment Reminder
Read 14.4 - 14.7
Practice Problems:
P14.19, P14.20, P14.22, P14.23, P14.32
Lab #7 next week. Note that there is a design
to be done in the prelab.
NO D2L Quiz this weekend
E

EELE 250: Circuits, Devices, and
Motors
Op Amps (cont.)
Assignment Reminder
Read 14.7 and 14.9; also read 5.7 (3 phase)
Practice Problems:
P14.19, P14.20, P14.22, P14.23, P14.32
Lab #7 this week. Note that there is a design
to be done in the prelab. L

EELE 250: Circuits, Devices, and
Motors
Lecture 1
Welcome!
Class description and syllabus
Lecture and Lab
Lecture requires i-clicker
Lab requires a lab component kit
Quizzes on D2L
Exams in class
What is EE?
First it was just electrical power,
The