ATTACH THIS SHEET AS THE FIRST PAGE OF YOUR ASSIGNMENT Assignment 6, ECE 464, FS 08 Name:_ Score:_
Due: Nov. 10, 2008; 9:00 AM READING: Chapter 6
6.1) A singlephase, fullbridge inverter has a switching frequency of 100 Hz and a DC voltage of 200 V. The
3. Solutions to Selected Problems
3.1 dcdc Switchmode Converters
Stepdown Converters (Chapter 7, Moham) 71 VO=5V, Vd=10V to 40V, PO5W, fs=50kHz. Find the minimum inductance to keep the converter in the continuous conduction mode under all conditions.
H U T D EPART M EN T OF M AT H . A PPL I ED

I D E AD VAN CED PROGRAM
C H APT ER 2: M athematical M odels and N umer ical M ethods (1 w eek s) L EC 3: EU L ERS M ET H OD (F OR ST U D EN T )
PhD . N GU YEN QU OC LAN (9/2007)
C ON T EN T S

3.1
E uler s
HUT DEPARTMENT OF MATH. APPLIED

MATH 385 INTRODUCTION TO DIFFERENTIAL EQUATIONS
ORDINARY DIFFERENTIAL EQUATIONS (ODE). FOURIER SERIES. PARTIAL DIFFERENTIAL EQUATIONS (PDE).
Instructor: Dr. Nguyen Quoc Lan (September, 2007)

PURPOSE
Nature speak to us b
HCM UT HCM NU Faculty of Applied Science Department of Math Applied
Ho Chi Minh City, 11 Septembre 2007
Syllabus
M ATH 385 INTRO DIFFERENTIAL EQUATIONS
Credit Class Hours Overall Grade : 3 (2.1.5) Theory: 28 Exercises: 14 42 Consultation: 1 class hours pe

HUT DEPARTMENT OF MATH. APPLIED
INTRO DIFFERENTIAL EQUATIONS
CHAPTER 1: First Order Differential Equations (2 weeks) LEC 1: BASIC NOTIONS OF FIRST ORDER DIFFERENTIAL EQUATION
PhD. NGUYEN QUOC LAN (9/2007)

CONTENTS
1.1 DIFFERENTIAL EQUATIONS AND MATHE
H UT DEPARTM ENT OF M ATH. APPLI ED

I DE ADVANCED PROGRAM
CHAPTER 5: PARTI AL DI FFERENTI AL EQUATI ONS (PDE) LEC 10: I NTRODUCTI ON SEPARATI ON OF V ARI ABLES
PhD. NGUYEN QUOC LAN (11/2007)
CONTENTS

10.1 I NTRODUCTI ON TO PDE 10.2 M ETHOD OF SEPARAT
H UT DEPARTM ENT OF M ATH. APPLI ED

I DE ADVANCED PROGRAM
CHAPTER 4: FOURI ER SERI ES
PhD. NGUYEN QUOC LAN (11/2007)
CONTENTS

8.1 EXPRESSI NG A FUNCTI ON I N A TRI GONOM ETRI C SERI ES 8.2 FOURI ER COEFFI CI ENTS 8.3 FOURI ER SERI ES OF EVEN AND ODD
Exercises No 3. 11/2/2009
HCMUT HCMNU Faculty of Applied science Department of Math. Applied _ _ TCH BIN VI PHNG TRNH TRUYN SNG
I. Gii phng trnh truyn sng sau: Vi hm s ban u f(x) v g(x) : 2u 2u 0 < x < , t > 0, 1. f ( x ) 0; g ( x) = 5 sin 2 x 10 sin 5 x
HCMUT HCMNU Chapter1: First Order Differential Equations Faculty of Applied science 11/2/2009 Department of Math. Applied _ Cau 1 Tm ham u = u ( x, y ) thoaphngtrnhao hamriengcap1 vaieukienbiensaubangphngphaptachbien: u u =M , u ( 0, y ) = Me 2 y + ( 2 M
H UT DEPARTM ENT OF M ATH. APPLI ED

I DE ADVANCED PROGRAM
CHAPTER 3: L inear Differential Equations of Higher Order (3 weeks) LEC 4: I NTRODUCTI ON: 2ND ORDER L I NEAR EQUATI ONS (STUDENT)
PhD. NGUYEN QUOC LAN (10/2007)
T extbook: Elementary Differenti
Syllabus for ECE 464, Power Electronics
Second Semester, 2009 Instructor: Assoc. Prof. Nguyen, Nho Van Office: 314 A4 Hours: Monday 14h3016h00, or by appointment (email is best) Phone: 0908337518 Email: nvnho@hcmut.edu.vn Lectures: Thursday 12h3015h00
ATTACH THIS SHEET AS THE FIRST PAGE OF YOUR ASSIGNMENT Assignment 8 (OPTIONAL), ECE 464, FS 08 Name:_ Score:_
Due: Dec. 19, 2008; 12:00 PM READING: Chapter 1516
This assignment is optional. It is worth up to 25 points per problem. It is not bonus. If you
ATTACH THIS SHEET AS THE FIRST PAGE OF YOUR ASSIGNMENT Assignment 7, ECE 464, FS 08 Name:_ Score:_
Due: Nov. 17, 2008; 9:00 AM READING: Chapters 1112
7.1) A boost converter in continuous conduction mode has a switching frequency of 25 kHz and a duty cycl
ATTACH THIS SHEET AS THE FIRST PAGE OF YOUR ASSIGNMENT Assignment 3, ECE 464, FS 08 Name:_ Score:_
Due: Sept. 19, 2008; 9:00 AM READING: Chapter 2, 3
3.1) The circuit below is controlled such that the output voltage is as shown. Redraw the circuit with th
ATTACH THIS SHEET AS THE FIRST PAGE OF YOUR ASSIGNMENT Assignment 3, ECE 464, FS 08 Name:_ Score:_
Due: Sept. 19, 2008; 9:00 AM READING: Chapter 2, 3
3.1) The circuit below is controlled such that the output voltage is as shown. Redraw the circuit with th
ATTACH THIS SHEET AS THE FIRST PAGE OF YOUR ASSIGNMENT Assignment 2, ECE 464, FS 08 Name:_ Score:_
Due: Sept. 11, 2008; 9:00 AM READING: Chapter 2 
2.1) A dc voltage source is to be used to supply ac current to a wyeconnected threephase load where each
Exercises No 1. HCMUT HCMNU Chapter1: First Order Differential Equations Faculty of Applied science 11/2/2009 Department of Math. Applied _ _ I. Tm cc gi tr phng trnh ang xt c nghim khng tm thng, v hy ch ra nghim khng tm thng : 1. y"+y = 0; 0 < x < ; 2. y
BO M ON TOAN NG DU NG HBK

TOAN 4 CHUOI VA PHNG TR NH VI PHAN
BAI 5: PHNG TR NH VI PHAN CAP 2
TS. NGUYEN QUOC LAN (5/2006)
NOI DUNG

1 PHNG TR NH VI PHAN CAP 2. TRNG H P GI AM CAP 2 PHNG TR NH VI PHAN CAP 2 HE SO H ANG 3 PHNG TR NH VI PHAN CAP 2 HE SO
Buck converter (Step down Converter) Example 1. A semiconductor switching element in a power circuit has minimum effective on time of 42 s. The dc supply is rated at 1000 V. (1) If the chopper output voltage must be adjustable down to 20 V, what is the hi
27
Periodic function: For any physically realizable periodic function: f(t) = f(t+T), (period T) Everage value: X T 1 1T V ave = v(t )dt = v( x)dx T0 XT 0 Applications: average voltage, average current, average power, Root mean square value: V rms 12 = v
EE8407
Power Converter Systems
Graduate Course EE8407
Topic 2
Bin Wu PhD, PEng Professor
ELCE Department Ryerson University
Contact Info
Office: ENG328 Tel: (416) 9795000 ext: 6484 Email: bwu@ee.ryerson.ca http:/www.ee.ryerson.ca/~bwu/
Ryerson Campus
Tex
Electronic ballasts: , also called solidstate ballasts, are those power electronic converters used to supply discharge lamps. The modern electronic ballasts with the development of low cost power MOSFETs allow to supply uorescent lamps at frequencies of
EE8407
Power Converter Systems
Graduate Course EE8407
Topic 1
Bin Wu PhD, PEng Professor
ELCE Department Ryerson University
Contact Info
Office: ENG328 Tel: (416) 9795000 ext: 6484 Email: bwu@ee.ryerson.ca http:/www.ee.ryerson.ca/~bwu/
Counseling Hours
W
Course Schedule  Fall 2008
Electrical and Computer Engineering
464 Power Electronics credit: 3 hours. Switching functions and methods of control such as pulsewidth modulation, phase control, and phase modulation; dcdc, acdc, dcac, and acac power con
Syllabus for ECE 464, Power Electronics
Second Semester, 2009 Instructor: Assoc. Prof. Nguyen, Nho Van Office: 314 A4 Hours: Monday 14h3016h00, or by appointment (email is best) Phone: 0908337518 Email: nvnho@hcmut.edu.vn Lectures: Thursday 12h3015h00