Power Electronics : Principles and Applications

by Jacob,J. Michael

• ISBN13: 9780766823327
• ISBN10: 0766823326
• Edition: 1st
• Format: Hardcover
• Copyright: 2001-08-03
• Publisher: Cengage Learning
• More Book Details
• Purchase Benefits

Summary

Power Electronics; Principles and Applications guides the reader through the circuit analysis techniques in the design, analysis and fabrication of power electronics for consumer, and commercial applications as well as those unique to industrial manufacturing. Included are composite high-voltage amplifiers, power op amps, linear audio power ICs, MOSFETs used in class AB amplifiers and in power switches, switching power supplies, thyristors and thyristor control circuits. Ideal for use in ABET-accredited engineering technology programs, the book adds to the classical industrial power control a rare mix of electronics designed to deliver power to consumer and commercial loads such as audio systems, and the management of power for the explosion of hand-held devices. How a power circuit is built is as critical as the parts that are selected. Both protoboard and printed circuit board layout principles are explained with detailed, step-by-step illustrations, photographs and lots of lab practice. Microprocessors are pervasive; in garage door openers, microwave oven, refrigerators, faxes, printers, copiers, and many toys. Power electronics are needed to follow their commands, delivering hundreds of milliamps to tens of amps to the motors, valves, heaters and lights that we use. A variety of low and high side switches, switch drivers and H bridges are illustrated. Buck, boost, flyback and line-powered switching power supplies are explained, design techniques and special purpose IC explored in detail, and practical laboratory exercises provided. Additional chapters feature circuit design simulations and lab exercises that offer practice in the design, analysis, fabrication and testing of classical industrial thyristor-based conversion and motor drive circuits.

Table of Contents

Preface	ix
Advanced Operational Amplifier Principles	1	(512)
Introduction	1	(1)
Objectives	1	(1)
Op Amp Characteristics	2	(18)
Voltage Follower	5	(3)
Noninverting Amplifier	8	(6)
Inverting Amplifier	14	(6)
A Universal Analysis Technique	20	(10)
Difference Amplifier	21	(6)
Instrumentation Amplifier	27	(3)
Composite Amplifier	30	(5)
Power Output Stage	30	(3)
Active Feedback	33	(2)
Suspended Supply Amplifier	35	(31)
Suspending the Supply	39	(4)
The Amplifier	43	(3)
Tolerances, Tolerances, Tolerances!	46	(3)
Composite Amplifier	49	(3)
Summary	52	(2)
Problems	54	(5)
Suspended Supply Amp Lab Exercise	59	(6)
Power Electronics Circuit Layout
Introduction	65	(1)
Objectives	65	(1)
Mechanical and Thermal Details	66	(9)
Part Placement	75	(8)
Interconnections	83	(13)
Wire Gage	83	(5)
Traces	88	(8)
Other Considerations	96	(8)
Summary	98	(2)
Problems	100	(3)
Power Parameter Calculations
Introduction	103	(1)
Objectives	103	(1)
Common Waveforms	104	(7)
DC	104	(1)
Sinusoid	104	(3)
Rectangular Waves	107	(1)
Triangular Waves	108	(3)
Average Value	111	(11)
Rectangular Waves	111	(2)
Sinusoids	113	(4)
Triangular Waves	117	(5)
Root Mean Squared Value	122	(14)
DC Value	123	(1)
Rectangular Waves	123	(2)
Triangular Waves	125	(6)
Sinusoids	131	(5)
Power	136	(24)
DC Voltage and Current	141	(1)
Sinusoids	142	(8)
Rectangular Waves	150	(2)
Summary	152	(3)
Problems	155	(4)
Linear Power Amplifier Integrated Circuits
Introduction	159	(1)
Objectives	159	(1)
OPA548 Operational Amplifier IC	160	(6)
Power Calculations	166	(10)
DC Signal to the Load	166	(5)
Sinusoidal Signal to the Load	171	(5)
Heat Sinks	176	(5)
Protecting the OPA548	181	(2)
Audio Power Parameters	183	(6)
Low Power Audio Amplifier IC	189	(9)
High Power Audio Amplifier IC	198	(16)
Summary	202	(2)
Problems	204	(4)
Power Op Amp Lab Exercise	208	(5)
Discrete Linear Power Amplifier
Introduction	213	(1)
Objectives	213	(1)
The Enhancement Mode MOSFET	214	(6)
N-Channel	214	(4)
P-Channel	218	(2)
Class A Common Drain Amplifier	220	(4)
Bias	220	(1)
AC Operation	221	(3)
Class B Push-Pull Amplifier	224	(9)
The Push Amplifier	225	(4)
The Pull Amplifier	229	(1)
The Push-Pull Amplifier	230	(3)
Class B Amp with Op Amp Driver	233	(12)
Noninverting Amplifier	233	(3)
The Suspended Supply Amplifier	236	(1)
Layout Concerns	237	(1)
Inverting Amplifier	237	(6)
Op Amp Selection	243	(2)
Parallel MOSFETs in a Linear Amp	245	(5)
Amplifier Protection	250	(6)
Current Limiting	251	(3)
Thermal Shutdown	254	(2)
Driving a Reactive Load	256	(14)
Summary	259	(2)
Problems	261	(2)
Class B Amplifier Lab Exercise	263	(6)
Power Switches
Introduction	269	(1)
Objectives	269	(1)
Switching Characteristics	270	(10)
Diodes	270	(3)
Transistors	273	(7)
Parallel MOSFET Switches	280	(1)
Low Side Switches	281	(14)
Bipolar Junction Transistor	281	(5)
Open Collector Inverter	286	(2)
MOSFET Low Side Switch	288	(7)
High Side Switches	295	(9)
N-Channel High Side Switch	295	(1)
P-Channel High Side Switch	296	(6)
PNP High Side Switch	302	(2)
MOSFET Switch Drivers	304	(5)
Low Side MOSFET Driver	305	(2)
High and Low Side MOSFET Driver	307	(2)
H Bridge	309	(17)
Summary	315	(1)
Problems	316	(5)
Transistor Switch Lab Exercise	321	(4)
Switching Power Supplies
Introduction	325	(1)
Objectives	325	(1)
Buck Regulators	326	(18)
Basics	326	(11)
LM2595 Simple Switcher® Buck Regulator IC	337	(7)
Boost Regulators	344	(13)
Basics	344	(8)
LM2585 Simple Switcher ® Flyback Regulator IC	352	(5)
Line Voltage Flyback Converter	357	(29)
The Flyback Converter	357	(9)
Line Voltage Input	366	(6)
Summary	372	(2)
Problems	374	(5)
Buck Regulator Lab Exercise	379	(2)
Boost Regulator Lab Exercise	381	(4)
Thyristors
Introduction	385	(1)
Objectives	385	(1)
Thyristor Device Characteristics	386	(10)
Silicon Controlled Rectifier	386	(7)
Triac	393	(2)
Low Side versus High Side Switch	395	(1)
Snubbing	396	(7)
Critical Rate of Rise of Current	396	(2)
Critical Rate of Rise of Voltage	398	(5)
Triggers	403	(6)
Shockley Diode	403	(1)
Diac	404	(2)
Optically Coupled Triac Trigger	406	(3)
Proportional Power Circuits	409	(37)
Time Proportioning	410	(7)
Phase Angle Firing	417	(14)
Summary	431	(2)
Problems	433	(4)
Triac Lab Exercise	437	(8)
Power Conversion and Motor Drive Applications
Introduction	445	(1)
Objectives	445	(1)
DC-to-DC Converters	446	(9)
Buck	446	(4)
Boost	450	(3)
Flyback Converter	453	(2)
AC-to-DC Converters	455	(22)
Single-Phase	455	(9)
Three-Phase	464	(13)
DC-to-AC Converters	477	(16)
Input Inverter	479	(3)
Secondaries	482	(1)
Microcontroller	482	(4)
H Bridge and Driver	486	(2)
Output Filter	488	(2)
Negative Feedback	490	(3)
Permanent Magnet Motor Drivers	493	(20)
Common Concerns	493	(5)
DC Brush Motor	498	(4)
DC Brushless Motor	502	(5)
Summary	507	(2)
Problems	509	(4)
Appendix A: Answers to Odd-Numbered Problems	513	(4)
Appendix B: Laboratory Parts and Special Equipment	517	(2)
Index	519