EE Switching Power Supply Fundamentals

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Electronics Engineering/Switching Power Supply Fundamentals

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Welcome to the course EE 230.

Contents 1 Assumed Understanding or Prerequisites 2 Syllabus 3 Lecture plan 4 Textbooks and required reading/reference 5 Lab Materials 6 Datasheets Relevant 6.1 Logic 6.2 Timer/Driver 6.3 opamps 6.3.1 Comparators 6.4 Mosfets & BJTs 6.5 Diodes 6.5.1 Schottky 6.5.2 General Purpose Rectifier 6.6 Inductors 6.7 Capacitors 7 Reference books 8 Online resources 9 Learning projects 10 Research projects 11 News 12 Wikiversity activities 12.1 Active participants 12.2 To do 13 See also

EE230 Edit/View Electronic Engineering EE Switching Power Supply Fundamentals The Linear Regulation Problem The Basic unregulated switching supply The Basic regulated switching supply

[edit] Assumed Understanding or Prerequisites

• A basic course in computer hardware covering building and repair (A+ cert course).
• OS 1 or more
  • Windows file system and general program use
  • Linux file system and general use, with working WINE install
• EE 111 Digital Electronics
• EE 112 Electronics fundamentals
• EE 113 Analog Electronics Devices
• EE 90 Introduction to Electronics or the folowing
  • oscope DMM and power supply use
  • Breadboarding
  • Schematics
  • SPICE
• required algebra 1 geometry 1
• recommended algebra 2 calculus 1
• Linear Technology's LTspice IV / Switcher CAD IV installed

[edit] Syllabus

This is a introduction in to power supplies and Switch mode power supply theory. This course will cover,

• zenner and lm78xx based linear regulation. why it doesn't work well.
• basic unregulated switching power supply
• voltage feedback regulation
• current loop limit regulation
• Inductor based buck, boost, buck boost, invert, non isolated flyback
• Capacitor based charge pump, buck, boost, invert

The continuation of this course is EE 330 Switching Power Supplies 2

Before contributing please see the talk page for this class for more information.EE 212 Switching Power Supply Fundamentals

[edit] Lecture plan

• EE 230 Digital Electronics
  • Lecture 1, The Linear Regulation Problem.
  • Lecture 2, The Basic unregulated switching supply
  • Lecture 3, The Basic regulated switching supply
  • Lecture 4, Current sense
  • Lecture 5, Soft start
• Mid-term Exam
  • Lecture ?, Boost, Invert, Flyback
  • Lecture ?, Linear technology's integrated switch, National Semiconductor simple switcher, TI integrated switch
• Final Exam

[edit] Textbooks and required reading/reference

• recommended reading
  • Demystifying Switching Power Supplies, Raymond A. Mack, Jr. ISBN 0-7506-7445-8

[edit] Lab Materials

• A computer with
  • windows 98,2000,ME,XP or Linux distribution with WINE

[edit] Datasheets Relevant

[edit] Logic

		Schmitt Trigger
Quad NAND 3-18V	CD4011	CD4093
Dual D flipflop 3-18V	CD4013

[edit] Timer/Driver

	200mA sink/source	100mA sink 10mA source
	NE555	TLC555

[edit] opamps

main product table opamps below 50mhz TI

speed	1Mhz	2Mhz	4Mhz	10Mhz
general purpose
Rail to Rail input

[edit] Comparators

speed	1Mhz	2Mhz	4Mhz	10Mhz
general purpouse
Rail to Rail input		NS LM339

[edit] Mosfets & BJTs

P channel

amps\volts			-30
5A			FDC610PZ 4.9A 42mΩon +-25Vgs

N channel

amps\volts			30
5A			FDC653N 35mΩon +-20Vgs

[edit] Diodes

[edit] Schottky

Volts\Amps	1A	2A	3	4	5
40V		MBRS2040L
60V	MBRA160T3

[edit] General Purpose Rectifier

Volts\Amps	100mA-300mA	1A
100V TH	1N914 916 4148 4448	1N4002 1N400x
75V SMT	1N914 916 4148 4448

[edit] Inductors

Rseries\Ipeak	2	3.2DC 3.4(10% Ldrop) 5.2(20% Ldrop)
65mΩ		[Gowanda 121AT1003V]100uH

[edit] Capacitors

IO pins	6	8	18	24	32

[edit] Reference books

[edit] Online resources

[edit] Learning projects

[edit] Research projects

[edit] News

[edit] Wikiversity activities

[edit] Active participants

[edit] To do

[edit] See also

EE230 Edit/View
* Electronic Engineering * EE Switching Power Supply Fundamentals * The Linear Regulation Problem * The Basic unregulated switching supply * The Basic regulated switching supply