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Demystifying Switching Power Supplies : Demystifying Technology - Raymond Mack

Demystifying Switching Power Supplies

Demystifying Technology

Hardcover Published: 5th April 2005
ISBN: 9780750674454
Number Of Pages: 344

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This book is a crash course in the fundamental theory, concepts, and terminology of switching power supplies. It is designed to quickly prepare engineers to make key decisions about power supplies for their projects.
Intended for readers who need to quickly understand the key points of switching power supplies, this book covers the 20% of the topic that engineers use, 80% of the time.
Unlike existing switching power supply books that deal strictly with design issues, this book also recognizes the growing importance of "off-the-shelf" commercial switching power supplies, giving readers the background necessary to select the right commercial supply.
This book covers the core essentials of power supply theory and design while keeping mathematics to the absolute minimum necessary. Special attention is given to the selection of appropriate components, such as inductors and transformers, to ensure safe and reliable operation. Engineers, whose main design responsibilities are in other areas, will better understand the strengths and weaknesses of switching power supplies and whether such supplies are appropriate for their projects. They will be able to give more meaningful design requirements and specifications to those who design switching power supplies.
* Discusses both AC line supplies and DC-DC inverters.
* Covers the main switching power supply designs, including flyback, forward conversion, bridge, buch, boost, and boost/buck topologies.
* Design examples include a 220 volt offline switching power supply and a 110 volt uninterruptible supply.

Industry Reviews

"Mack takes you from the basics (v=Ldi/dt, plus buck, boost, inverting boost, buck-boost, and other supply circuit topologies) on through the details of passive component selection and semiconductor selection. Of particular note are his treatment of control circuits and their effect on ripple levels and electromagnetic compatibility. He provides a step-by-step test sequence for evaluating power-supply response using a variable load, an oscilloscope, and function generator. Mack concludes with two solid examples: a true sine-wave inverter uninterruptible power supply and a personal-computer power supply." - Rick Nelson, Chief Editor, Test & Measurement World, August 2006

Prefacep. ix
Introductionp. xi
Basic Switching Circuitsp. 1
Energy Storage Basicsp. 3
Buck Converterp. 4
Boost Converterp. 6
Inverting Boost Converterp. 9
Buck-Boost Converterp. 10
Transformer Isolated Convertersp. 11
Synchronous Rectificationp. 16
Charge Pumpsp. 17
Control Circuitsp. 21
Basic Control Circuitsp. 23
The Error Amplifierp. 26
Error Amplifier Compensationp. 28
A Representative Voltage Mode PWM Controllerp. 33
Current Mode Controlp. 39
A Representative Current Mode PWM Controllerp. 41
Charge Pump Circuitsp. 45
Multiple Phase PWM Controllersp. 49
Resonant Mode Controllersp. 50
The Input Power Supplyp. 51
Off-Line Operationp. 53
Radio Interference Suppressionp. 55
Safety Agency Issuesp. 57
Power Factor Correctionp. 60
In-Rush Currentp. 64
Hold-Up Timep. 66
Input Rectifier Considerationsp. 69
Input Reservoir Capacitor Characteristicsp. 70
Non-Isolated Circuitsp. 73
General Design Methodp. 75
Buck Converter Designsp. 76
Boost Converter Designsp. 86
Inverting Designsp. 94
Step Up/Step Down (Buck/Boost) Designsp. 97
Charge Pump Designsp. 102
Layout Considerationsp. 107
Transformer-Isolated Circuitsp. 111
Feedback Mechanismsp. 113
Flyback Circuitsp. 121
Practical Flyback Circuit Designp. 129
Off-Line Flyback Examplep. 129
Non-Isolated Flyback Examplep. 137
Forward Converter Circuitsp. 141
Practical Forward Converter Designp. 143
Off-Line Forward Converter Examplep. 144
Non-Isolated Forward Converter Examplep. 148
Push-Pull Circuitsp. 152
Practical Push-Pull Circuit Designp. 154
Half Bridge Circuitsp. 158
Practical Half Bridge Circuit Designp. 161
Full Bridge Circuitsp. 164
Passive Component Selectionp. 167
Capacitor Characteristicsp. 169
Aluminum Electrolytic Capacitorsp. 171
Solid Tantalum and Niobium Capacitorsp. 173
Solid Polymer Electrolytic Capacitorsp. 175
Multilayer Ceramic Capacitorsp. 176
Film Capacitorsp. 180
Resistor Characteristicsp. 181
Carbon Composition Resistorsp. 183
Film Resistorsp. 183
Wire Resistorsp. 184
Semiconductor Selectionp. 187
Diode Characteristicsp. 189
Junction Diodesp. 189
Schottky Diodesp. 194
Passivationp. 197
Bipolar Transistorsp. 197
Power MOSFETsp. 204
Gate Drivep. 208
Safe Operating Area and Avalanche Ratingp. 219
Synchronous Rectificationp. 222
Sense FETsp. 229
Package Optionsp. 229
IGBT Devicesp. 230
Inductor Selectionp. 235
Properties of Real Inductorsp. 237
Core Propertiesp. 240
Designing a Powder Toroid Choke Corep. 250
Choosing a Boost Converter Corep. 256
Transformer Selectionp. 261
Transformer Propertiesp. 263
Safety Concernsp. 266
Practical Construction Considerationsp. 267
Choosing a Forward Converter Transformer Corep. 271
Practical Flyback Core Considerationsp. 272
Choosing a Flyback Converter "Transformer" Corep. 273
A "True Sine Wave" Inverter Design Examplep. 277
Design Requirementsp. 279
Design Descriptionp. 280
Preregulator Detailed Designp. 286
Output Converter Detailed Designp. 290
H Bridge Detailed Designp. 293
Bridge Drive Detailed Designp. 296
A PC Off-Line Supplyp. 299
Setting Requirementsp. 301
The Input Supplyp. 302
DC-DC Converterp. 305
Diode Selectionp. 309
Inductor Designsp. 310
Capacitor Designsp. 314
Transformer Designp. 315
Indexp. 319
Table of Contents provided by Ingram. All Rights Reserved.

ISBN: 9780750674454
ISBN-10: 0750674458
Series: Demystifying Technology
Audience: Professional
Format: Hardcover
Language: English
Number Of Pages: 344
Published: 5th April 2005
Publisher: Elsevier Science & Technology
Country of Publication: GB
Dimensions (cm): 23.5 x 19.1  x 2.03
Weight (kg): 0.79