EE4161
Homework Assignment
Due Jan 31
1. Download the solar spectrum for AM1.5 (google AM1.5 and xls). Plot the number of photons
per unit wavelength per second striking the earth per square meter vs
Hmwk3
1 of 3
http:/127.0.0.1:8888/4281f8d9-6a92-4f22-93ca-6a1b41.
In [76]: from _future_ import division #python quirk
from IPython.core.display import Image
Prob 4:
It is easiest to do this in spice.
http:/www.currentresults.com/Weather/Minnesota/average-sunshinejanuary.php
From the data through the website that I gave, we can get this:
Month
Jan
Feb
Mar
Apr
May
Jun
July
Aug
Sep
Oct
Nov
Dec
Total
EE4161
Homework Assignment
Due Jan 31
Problems:
1. Read Mertens Ch. 3 and in Ch. 4, 4.1 and 4.2
2. The goal of this problem is to calculate the current from a photovoltaic cell as exactly as
possible
EE4161W
Homework Assignment
Due Jan 24
1. Read Ch. 1 and 2 in Mertens and Roth
2. Exercise 1.5c in Mertens and Roth (State your assumptions).
3. Download the solar spectrum for AM1.5 (google AM1.5 and
EE4161
Due Dates
Memo on Topic due Thurs, Jan 26
Citations and corresponding technical facts due Feb 6
Abstract due Feb 9
Peer revision due Feb 14
Revised abstract due to be determined
Extended introd
Citation Rubric
The purpose of this assignment is for you to begin investigating sources that will be useful in
writing your final paper. The requirement for this assignment is to cite 3 different sou
EE4161W
An incomplete list of possible topics
revised Jan 18
Possible topics:
Note that the final paper will only be about 5 pages. This means that for your paper to any meaningful technical content,
Abstract Guidelines and Rubric
As discussed in class, the purpose of an abstract is to provide indexing
services with keyword and to inform the reader what they will be reading in the
rest of the pape
EE4161Exam 2 Spring 2013
Solutions
1. 3 mistakes in boost converter
Diode needs to be flipped back-to-front so current can actually flow
Capacitor at Output has the wrong polarity, flip this also.
Tra
A Summary of Useful Equations
q
o
Ks
ns
ns
Ko
kB
kB
h
mo
kB T /q
c
NA
R
1.6 1019 C
electron charge
14
8.85 10
F/cm
permittivity of free space
11.8 (Si)
relative dielectric constant
3.4 (Si)
refractive
Name:
I.D.:
Grade:
1.
2.
3.
4.
5.
Instructions
1. Please write neatly so that we can easily find ways to give partial credit.
2. Place a box around your final answer
3. Calculators are allowed but mus
Name:
I.D.:
Grade:
1.
2.
3.
4.
5.
Instructions
1. Please write neatly so that we can easily find partial credit
2. Place a box around your final answer
3. Calculators are allowed but must not be share
Homework 1
1 of 3
http:/127.0.0.1:8888/4b46215f-416a-41cd-8deb-2f267ac33954
Solutions to homework set #1:
This uses python notebook software. It is like Matlab, free, and runs on platforms other than
Homework problems
Q1
In the power converter diagrammed below, plot ia from zero to 80 sec for three cases.
a) Pout = 50 W, steady state
b) Pout = 12.8 W, steady state
c) Pout = 8 W, steady state
How w
EE4161
Homework Assignment
Due Thurs, April 11
1. 1 mol of H2 SO4 completely dissociates into H+ and HSO4 in 1 liter of water. What is the
hydrogen ion concentration per cc?
2. For the nanowire batter
Homework Due May 7
1 of 4
http:/127.0.0.1:8888/90737391-b9b9-4d4e-8398-834b0c5bbedd
Set due May 1, 2012:
The following uses python, which is very close in syntax to Matlab but is free, provides easier
EE4161
White Paper Guidelines
Due Feb 18
The main writing assignment for EE4161W is to be a proposal to a company to invest in a
new technology related to energy that (1) has a strong relation to elec
Admin
Overview
Course Focus
1. Photovoltaic devices are being developed as an
important energy source. Though under development
for over 35 years, they still need improvement to be
economical. They ar
EE4161
Homework Assignment
Due April 30
A battery is discharged from 100% SOC at a rate of C/2 for 30 minutes. How long will it
take to fully recharge the battery at a rate of C/10? Assume that the ba
Homework_April_30
1 of 2
http:/127.0.0.1:8888/589d852e-6f15-4a2b-ad76-73ad29402618
In [17]: from _future_ import division
Prob 1
At each SOC the battery is charged and discharged for equal times. The
EE4161
Homework Assignment
Due April 30
100%
40%
I (A)
1. A 30 Ah battery has the following IV profile. Assume it is at a particular SOC (state of
charge) and is charged for a very short time at 0.1C.
EE4161
Homework Assignment
Due Thurs, Apr 4
.
Homework
problems
Q1
In the power converter diagrammed below, plot ia from zero to 80 sec for three cases.
a) Pout = 50 W, steady state
b) Pout =
Hmwk4
1 of 2
http:/127.0.0.1:8888/4a261f17-e3ba-4f05-ac4e-1bb59dbe6142
In [40]: from _future_ import division
#python quirk
Prob 3
The figure is from Sunpower. The goal here is to understand the prope