Resonant Power Converters

Resonant Power Converters......Page 5
Contents......Page 9
Preface......Page 23
About The Authors......Page 27
List of Symbols......Page 29
1 Introduction......Page 33
1.1 References......Page 37
PART I Rectifiers......Page 39
2.1 Introduction......Page 41
2.3.1 Circuit Operation......Page 42
2.3.2 Currents and Voltages......Page 44
2.3.3 Power Factor......Page 45
2.3.4 Power-Output Capability......Page 46
2.3.5 Efficiency......Page 47
2.3.7 Voltage Transfer Function......Page 48
2.3.8 Ripple Voltage......Page 50
2.4.1 Currents and Voltages......Page 52
2.4.2 Power Factor......Page 54
2.4.3 Power-Output Capability......Page 55
2.4.4 Efficiency......Page 56
2.4.6 Voltage Transfer Function......Page 57
2.4.7 Ripple Voltage......Page 58
2.5 Class D Bridge Rectifier......Page 60
2.5.1 Power-Output Capability......Page 61
2.5.4 Voltage Transfer Function......Page 63
2.6 Effects of Equivalent Series Resistance and Equivalent Series Inductance......Page 66
2.7 Synchronous Rectifiers......Page 70
2.7.1 Gate-Drive Power......Page 71
2.7.4 Voltage Transfer Function......Page 72
2.8 Summary......Page 74
2.9 References......Page 75
2.10 Review Questions......Page 76
2.11 Problems......Page 77
3.2 Assumptions......Page 79
3.3.1 Currents and Voltages......Page 80
3.3.2 Power Factor......Page 82
3.3.4 Efficiency......Page 83
3.3.6 Voltage Transfer Function......Page 85
3.3.7 Ripple Voltage......Page 87
3.4.1 Currents and Voltages......Page 88
3.4.2 Power Factor......Page 89
3.4.3 Efficiency......Page 91
3.4.5 Voltage Transfer Function......Page 92
3.4.6 Ripple Voltage......Page 93
3.5 Class D Bridge Rectifier......Page 94
3.6.1 Efficiency......Page 98
3.6.3 Voltage Transfer Function......Page 99
3.8 References......Page 101
3.10 Problems......Page 103
4.2.1 Principle of Operation......Page 104
4.2.2 Assumptions......Page 106
4.2.3 Characterization of the Rectifier at Any D......Page 107
4.2.4 Parameters for D = 0.5......Page 120
4.2.5 Design Example......Page 121
4.3.1 Circuit Description......Page 122
4.3.3 Characteristics......Page 124
4.3.4 Input Impedance......Page 130
4.3.5 Diode Stresses......Page 133
4.3.6 Parameters for D = 0.5......Page 135
4.3.7 Design Example......Page 137
4.4 Summary......Page 138
4.5 References......Page 139
4.7 Problems......Page 140
5.2.1 Circuit Description......Page 141
5.2.2 Assumptions......Page 143
5.2.3 Component Values......Page 144
5.2.5 Input Impedance......Page 147
5.2.6 Current and Voltage Transfer Functions......Page 154
5.2.7 Design Example......Page 155
5.3.1 Principle of Operation......Page 157
5.3.2 Assumptions......Page 159
5.3.3 Component Values......Page 160
5.3.5 Peak Diode Current and Voltage......Page 163
5.3.6 Voltage Transfer Function......Page 164
5.3.7 Input Impedance......Page 165
5.3.8 Design Example......Page 170
5.5 References......Page 171
5.7 Problems......Page 172
PART II Inverters......Page 173
6.1 Introduction......Page 175
6.2 Circuit Description......Page 176
6.3 Principle of Operation......Page 178
6.3.1 Operation Below Resonance......Page 179
6.3.2 Operation Above Resonance......Page 183
6.4 Topologies of Class D Voltage-Source Inverters......Page 184
6.5.2 Series-Resonant Circuit......Page 187
6.5.3 Input Impedance of Series-Resonant Circuit......Page 189
6.5.4 Currents, Voltages, and Powers......Page 190
6.5.5 Current and Voltage Stresses......Page 194
6.6 Voltage Transfer Function......Page 198
6.7.2 Turn-On Switching Loss......Page 202
6.7.3 Turn-Off Switching Loss......Page 207
6.8 Design Example......Page 209
6.9.1 Currents, Voltages, and Powers......Page 212
6.9.2 Efficiency......Page 216
6.9.4 Voltage Transfer Function......Page 217
6.10 Relationships Among Inverters and Rectifiers......Page 219
6.11 Summary......Page 221
6.12 References......Page 222
6.14 Problems......Page 223
7.2 Principle of Operation......Page 225
7.3.2 Resonant Circuit......Page 229
7.3.3 Voltage Transfer Function......Page 236
7.3.4 Currents, Voltages, and Powers......Page 241
7.3.5 Efficiency......Page 249
7.4 Short-Circuit and Open-Circuit Operation......Page 251
7.5 Electronic Ballast for Fluorescent Lamps......Page 255
7.6 Design Example......Page 257
7.7.1 Voltage Transfer Function......Page 259
7.7.2 Currents, Voltages, and Powers......Page 260
7.7.3 Efficiency......Page 262
7.7.4 Short-Circuit and Open-Circuit Operation......Page 263
7.8 Summary......Page 264
7.11 Problems......Page 265
8.2 Principle of Operation......Page 267
8.3.1 Assumptions......Page 269
8.3.2 Resonant Circuit......Page 270
8.3.3 Voltage Transfer Function......Page 274
8.3.4 Energy Parameters......Page 276
8.3.5 Short-Circuit and Open-Circuit Operation......Page 285
8.4 Design Example......Page 286
8.5.1 Voltage Transfer Function......Page 289
8.5.2 Currents and Voltages......Page 290
8.6 Summary......Page 291
8.7 References......Page 292
8.9 Problems......Page 293
9.2 Principle of Operation......Page 294
9.3.2 Boundary Between Capacitive and Inductive Load......Page 296
9.3.3 Voltage Transfer Function......Page 301
9.3.4 Energy Parameters......Page 304
9.3.5 Short-Circuit and Open-Circuit Operation......Page 311
9.4 Design Example......Page 314
9.5.1 Voltage Transfer Function......Page 317
9.5.2 Currents and Voltages......Page 318
9.6 Summary......Page 319
9.9 Problems......Page 320
10.1 Introduction......Page 322
10.2 Principle of Operation......Page 323
10.3 Analysis of the Parallel-Resonant Circuit......Page 327
10.4.1 Voltage Transfer Function......Page 329
10.4.3 Conduction Power Loss......Page 334
10.4.4 Efficiency......Page 337
10.5 Design Example......Page 339
10.7 References......Page 341
10.9 Problems......Page 342
11.1 Introduction......Page 343
11.2 Phase-Controlled Current-Source Inverters......Page 344
11.3 Phase-Controlled Voltage-Source Inverters......Page 348
11.4.1 Circuit Description......Page 352
11.4.3 Voltage Transfer Function......Page 353
11.4.4 Currents......Page 355
11.4.5 Boundary Between Capacitive and Inductive Load......Page 356
11.4.6 Efficiency......Page 359
11.5 Design Example......Page 360
11.6 Summary......Page 361
11.7 References......Page 362
11.8 Review Questions......Page 363
11.9 Problems......Page 364
12.1 Introduction......Page 366
12.2.1 Circuit Description......Page 367
12.2.3 Optimum Operation......Page 368
12.2.4 Suboptimum Operation......Page 371
12.3.2 Current and Voltage Waveforms......Page 372
12.3.3 Voltage and Current Stresses......Page 375
12.3.4 Input Impedance of the Resonant Circuit......Page 377
12.3.6 Component Values......Page 379
12.4 Parameters at D — 0.5......Page 381
12.5 Efficiency......Page 383
12.6.2 Resonant Circuit π1a......Page 386
12.6.3 Resonant Circuit π2a......Page 389
12.6.5 Resonant Circuit π4a......Page 390
12.7 Design Example......Page 391
12.8 Push-Pull Class E ZVS Inverter......Page 394
12.10 References......Page 395
12.11 Review Questions......Page 399
12.12 Problems......Page 400
13.2 Circuit Description......Page 401
13.3 Principle of Operation......Page 402
13.4.1 Steady-State Current and Voltage Waveforms......Page 405
13.4.3 Fundamental-Frequency Components......Page 408
13.6 Element Values of Load Network......Page 410
13.7 Design Example......Page 411
13.8 Summary......Page 412
13.11 Problems......Page 413
14.2 Principle of Operation of Class DE Power Inverter......Page 414
14.3 Analysis of Class DE Power Inverter......Page 415
14.4 Components......Page 425
14.5 Device Stresses......Page 426
14.7 Maximum Operating Frequency......Page 427
14.8 Class DE Inverter with Single Shunt Capacitor......Page 429
14.10 Cancellation of Nonlinearities of Transistor Output Capacitances......Page 433
14.11 Summary......Page 434
14.12 References......Page 435
14.14 Problems......Page 436
PART III Converters......Page 437
15.1 Introduction......Page 439
15.2.1 Circuit Description......Page 440
15.2.2 Half-Bridge SRC with Half-Wave Rectifier......Page 442
15.2.4 Half-Bridge SRC with Bridge Rectifier......Page 443
15.3 Full-Bridge Series-Resonant Converter......Page 444
15.3.1 Full-Bridge SRC with Half-Wave Rectifier......Page 445
15.3.3 Full-Bridge SRC with Bridge Rectifier......Page 446
15.4 Design of Half-Bridge SRC......Page 447
15.5 Summary......Page 449
15.6 References......Page 450
15.8 Problems......Page 452
16.2.1 Principle of Operation......Page 454
16.2.2 Half-Bridge PRC with Half-Wave Rectifier......Page 457
16.3 Design of the Half-Bridge PRC......Page 459
16.4.1 Full-Bridge PRC with Half-Wave Rectifier......Page 462
16.4.3 Full-Bridge PRC with Bridge Rectifier......Page 463
16.6 References......Page 464
16.7 Review Questions......Page 465
16.8 Problems......Page 466
17.1 Introduction......Page 467
17.2 Circuit Description......Page 468
17.3.1 Half-Bridge SPRC with Half-Wave Rectifier......Page 471
17.4 Design of Half-Bridge SPRC......Page 472
17.5.2 Full-Bridge SPRC with Transformer Center-Tapped Rectifier......Page 475
17.5.3 Full-Bridge SPRC with Bridge Rectifier......Page 476
17.7 References......Page 477
17.8 Review Questions......Page 478
17.9 Problems......Page 479
18.2 Circuit Description......Page 480
18.3.1 Half-Bridge CLL Resonant Converter with Half-Wave Rectifier......Page 483
18.3.3 Half-Bridge CLL Resonant Converter with Bridge Rectifier......Page 484
18.4 Design of Half-Bridge CLL Resonant Converter......Page 485
18.5.1 Full-Bridge CLL Resonant Converter with Half-Wave Rectifier......Page 487
18.5.3 Full-Bridge CLL Resonant Converter with Bridge Rectifier......Page 488
18.8 References......Page 489
18.10 Problems......Page 490
19.2 Circuit Description......Page 491
19.2.1 CSRC with Half-Wave Rectifier......Page 492
19.3 Design of CSRC......Page 493
19.5 References......Page 496
19.7 Problems......Page 497
20.2 Circuit Description......Page 498
20.3 Principle of Operation......Page 500
20.4 Rectifier Parameters for D = 0.5......Page 501
20.5 Design of Class D Inverter/Class E Resonant Converter......Page 503
20.6 Class E ZVS Inverter/Class D Rectifier Resonant DC-DC Converter......Page 505
20.7 Class E ZVS Inverter/Class E ZVS Rectifier Resonant DC-DC Converter......Page 506
20.9 References......Page 507
20.11 Problems......Page 508
21.2 Circuit Description of SC PC SRC......Page 509
21.2.1 SC PC SRC with Half-Wave Rectifier......Page 510
21.2.3 SC PC SRC with Bridge Rectifier......Page 511
21.3 Design Example......Page 512
21.5 References......Page 514
21.7 Problems......Page 516
22.1 Introduction......Page 517
22.2 Zero-Voltage-Switching Quasiresonant DC-DC Converters......Page 520
22.3.1 Waveforms......Page 524
22.3.2 DC Voltage Transfer Function......Page 529
22.3.3 Voltage and Current Stresses......Page 530
22.4.1 Waveforms......Page 533
22.4.2 DC Voltage Transfer Function......Page 537
22.4.3 Current and Voltage Stresses......Page 538
22.5.1 Waveforms......Page 541
22.5.2 DC Voltage Transfer Function......Page 545
22.5.3 Current and Voltage Stresses......Page 546
22.5.4 Generalization of ZVS QR DC-DC Converters......Page 549
22.6 Zero-Current-Switching Quasiresonant DC-DC Converters......Page 550
22.7.1 Waveforms......Page 552
22.7.2 DC Voltage Transfer Function......Page 556
22.7.3 Current and Voltage Stresses......Page 557
22.8.1 Waveforms......Page 561
22.8.2 DC Voltage Transfer Function......Page 565
22.8.3 Current and Voltage Stresses......Page 567
22.9.1 Waveforms......Page 568
22.9.2 DC Voltage Transfer Function......Page 572
22.9.3 Current and Voltage Stresses......Page 573
22.9.4 Generalization of ZCS QR DC-DC Converters......Page 576
22.10 Zero-Voltage Switching Multiresonant DC-DC Converters......Page 577
22.10.1 Buck Multiresonant DC-DC Converter......Page 578
22.11 Zero-Current Switching Multiresonant DC-DC Converters......Page 582
22.12 Zero-Voltage Transition PWM Converters......Page 585
22.13 Zero-Current Transition Converters......Page 588
22.14 Summary......Page 590
22.15 References......Page 593
22.16 Review Questions......Page 595
22.17 Problems......Page 596
23.1 Introduction......Page 597
23.2.1 Nonlinear Model......Page 598
23.2.2 Small-Signal Linear Model......Page 601
23.3.1 Reduced Model......Page 604
23.3.2 Control......Page 605
23.5 References......Page 606
23.7 Problems......Page 608
Appendices......Page 609
Answers to Problems......Page 623
Index......Page 629