EC311
Introduction to Logic Design
Lecture 3: Combinational Logic II
Logic Functions: Rationale for Simplification
Logic Minimization: reduce complexity of the gate level implementation
reduce number of literals (gate inputs)
reduce number of gates
red
EC311
Introduction to Logic Design
Lecture 1 Number Systems
What Does Digital Mean?
Analog signal
Infinite possible values
Ex: voltage on a wire created
by microphone
Digital signal
Finite possible values
Ex: button pressed on a keypad
Sound waves
move
EC311
Introduction to Logic
Design
Lecture 4: Two Level and
Multi Level Optimization,
Hazards
Low Power Design of 2-level
AND-OR Networks
Power
consumption is proportional to a
number of 1s for CMOS
To
minimize a power consumption use
DISJOINT covering of
EC311 Introduction to Logic Design
Fall 2017
Lab B: Simplification of Boolean Functions
Goals
Introduction to design of simple combinational circuits.
Simplification of Boolean Functions
More general use of Xilinx ISE Schematic Capture
Programming the FPG
EC 413 Computer Organization - Fall 2017
Problem Set 1
Problem Set 1 Solution
General guidelines: Always state your assumptions and clearly explain your answers.
Please upload your solution document (PDF or TXT) to Blackboard.
100/100 points poss
EC413 Computer Organization, Spring 2017
Part 2
Part 2
Part 2
Homework
5 Solutions
1. [Performance]
WrReg Mux
ALU Mux
Mem/ALU Mux
Branch Mux
Jump Mux
2 or 0 (RegDst is X)
20
X
PC"4
PC"4
4.7.5
EC413 Computer Organization, Spring 2017
ALU
Add (PC"4)
Add (Br
EC413 Computer Organization, Spring 2017
Homework 2 Solutions
1. [Instruction executions]
a) 0x0000D113
b) 0xFFFF2FD3
c) Illegal. Can't have two immediate operands
d) Illegal. Register can't serve as offset
e) ADD gets replaced with ADDI on compilation -
EC413 Computer Organization, Spring 2017
Homework 6 Solutions
Part 3
1. [Pipelining and Data Hazards]
Chapter 4 Solutions
We can not add NOPs to the code to eliminate this hazard NOPs need to
be fetched just like any other instructions, so this hazard mus
Part I
Part I
Part I
EC413 Computer Organization, Spring 2017
Homework 3 Solutions
0. [Self Study - not to be turned in]
a) 10-bit Carry Select Adder: 0111011001 + 0011000010
b) 10-bit subtraction circuit: 0111011001 0011000010
c) 4-bit multiplication - d
EC413 Computer Organization, Spring 2017
Homework 1 Solutions
1. [Computer Systems]
a) An embedded system is a computer system designed to perform one or more
dedicated functions often with real-time computing constraints. It is embedde as
part of a compl
Summer EC455 HW#4
Problem 1. (25 points)
Consider the followin wave electric eld intensity vector in free space (i.e.,
so, no): E = 'xEoe' 3 '2'). Here, Eois a real positive constant.
Find (1) its direction of wave propagation (i.e., the wave vector-If),
Problem I. (18 points)
Illustrated below is a segment of an innitely long conducting wire of radius
b, length h, and conductivigur, og'entated along the 2 axis. It '6 a
tmiform DC current density c (aoE). (a) Find the cmrent-produced eld _,
% thsurface of
1
ECMS 573 Solar Energy Systems
Quiz 1
March 16, 2016
Closed book, closed notes test
Be brief in your answer. No calculations are necessary.
Use both sides of the question papers for your answer. Be sure to write your name
and ID number on the fro
Boston University
Department of Electrical and Computer Engineering
Department of Material Science and Engineering
EC/MS 573 Solar Energy Systems
(This course is jointly offered for both A1 and DL Students)
Course Outline 2016
Professor: Malay K. Mazumder
POWER
CONDITIONING
SYSTEMS
&
MAXIMUM-POWER
POINT TRACKING
Andrew Saltzman
Yi Zhao
Cheng Li
Xiaochen Zhu
!
1!
CONTENT
!
OBJECTIVE!.!3!
1. DCAC CONVERTER (Andrew Saltzman)!.!3!
1.1 Different Type of Converters!.!3!
Stand+Alone!Inverters!.!3!
Grid+Tie!Invert
Sun-Earth Geometry
Mo1on of the earth rela1ve to the sun
Apparent mo1on of the sun rela1ve to a xed observer
on the earth
Es1ma1on of available solar radia1on
Mean sun-Earth Distance: 1.495 x 1011 m
Solar Con
ECMS 573 Solar Energy Systems
Spring 2016
Homework 2 (Due Friday, February 19, 2016)
Solution Keys
1) (a) Estimate the solar constant for Mercury and Mars given that the mean
distances from the sun to Earth, Mercury and Mars are 150, 58 and 228 mil
ECMS 573 Solar Energy Systems
Spring 2016
Homework 4 (Due Monday, April 4, 2016)
1. A mono-crystalline Silicon solar cell with an active area 1 m2 is exposed to AM0 solar radiation
in extraterrestrial application just outside the earths atmosphere. You
1
ECMS 573 Solar Energy Systems
Midterm 1 Exam
February 22, 2016
Closed book, closed notes test, except for one page note
Used both sides of the question papers for your answer. Be sure to write your name
and ID number on the front page
1. (a) S
Topics to be covered in the Lectures 6 and 7
Eec7ve Densi7es of states in conduc7on- and Valence bands
Doping: Group IV and Group V dopants
Energy of the allowed states introduced within the forbidden energy gap
Topics to be covered in the Lectures 6 and 7
Eec7ve Densi7es of states in conduc7on- and Valence bands
Doping: Group IV and Group V dopants
Energy of the allowed states introduced within the forbidden energy gap
EC/MS 573 Solar Energy Systems
Spring 2016
Homework 1
Due Wednesday, February 3, 2016
Solution keys
1. Define solar constant and explain why is it useful to know the solar constant.
From the known solar constant, how would you calculate the solar