Integrated Audio Amplifiers in Bcd Technology (Hardcover)

1 Introduction.- 1.1 Integrated Audio Amplifiers.- 1.1.1 Output Power and Dissipation.- 1.1.2 Amplifier Classes.- 1.1.3 Amplifier Requirements.- 1.2 BCD Technology.- 1.2.1 DMOS versus Bipolar.- 1.2.2 DMOS Output Stage.- 1.3 Outline of this Thesis.- 1.4 References.- 2 DMOS Technology.- 2.1 Introduction.- 2.1.1 Historical Perspective.- 2.1.2 Introduction to DMOS.- 2.1.3 Application Areas.- 2.2 DMOS Device Structures.- 2.2.1 Lateral DMOS.- 2.2.2 Vertical DMOS.- 2.2.3 VMOS and UMOS.- 2.2.4 Comparison of DMOS Structures.- 2.3 DMOS Device Properties.- 2.3.1 Transfer Characteristics.- 2.3.2 Parasitic Elements.- 2.4 DMOS Process Technology.- 2.4.1 Isolation Techniques.- 2.4.2 Device Termination Techniques.- 2.4.3 BCD Technology.- 2.5 DMOS Versus Bipolar.- 2.5.1 Second Breakdown.- 2.5.2 Bipolar/DMOS Hybrids.- 2.6 Conclusion.- 2.7 References.- 3 Chargepump Circuits.- 3.1 Introduction.- 3.1.1 Switching Voltage Regulators.- 3.1.2 Voltage Multiplication.- 3.1.3 Application Areas of Chargepumps.- 3.2 Voltage Multipliers.- 3.2.1 Marx Voltage Multiplier.- 3.2.2 Cockcroft-Walton Voltage Multiplier.- 3.2.3 Dickson Voltage Multiplier.- 3.2.4 Comparison of Voltage Multipliers.- 3.3 Chargepump Operation.- 3.3.1 Normal Mode.- 3.3.2 Double Phase Mode.- 3.3.3 Current Driven Mode.- 3.3.4 Double Phase Current Driven Mode.- 3.3.5 Simulation Results.- 3.4 Voltage Control.- 3.4.1 Output Voltage Clipping.- 3.4.2 Amplitude Control.- 3.4.3 Frequency Control.- 3.4.4 Active Stage Control.- 3.5 Chargepump Implementation.- 3.5.1 Diodes and Switches.- 3.5.2 Driver Circuits.- 3.5.3 Output Voltage Detection.- 3.5.4 Realization Example.- 3.6 Conclusion.- 3.7 References.- 3.8 Appendix: Down Conversion.- 3.8.1 Voltage Division.- 3.8.2 References.- 4 Chargepump Modeling.- 4.1 Introduction.- 4.1.1 Chargepump Models.- 4.2 Extended Chargepump Model.- 4.2.1 Some Notation Conventions.- 4.2.2 Transient Modeling.- 4.2.3 Steady-State Modeling.- 4.2.4 Transient Behavior.- 4.3 Modeling of Parasitic Effects.- 4.3.1 Current Leakage.- 4.3.2 Series Resistance.- 4.3.3 Stray Capacitance.- 4.3.4 Parallel Capacitance.- 4.3.5 Body-Effect.- 4.3.6 Combination of Parasitic Effects.- 4.4 Conversion Efficiency.- 4.4.1 Power Consumption and Efficiency.- 4.4.2 Influence of Parasitics.- 4.5 Conclusion.- 4.6 References.- 5 BCD Audio Amplifiers.- 5.1 Introduction.- 5.1.1 Sources of Distortion.- 5.1.2 Output Resistance.- 5.1.3 Circuit Design in BCD Technology.- 5.2 Output Stage Topologies.- 5.2.1 Common Drain Stages.- 5.2.2 Common Source Stages.- 5.2.3 Comparison of Output Stages.- 5.3 A BCD Amplifier Design.- 5.3.1 Amplifier Topology.- 5.3.2 Signal Splitter.- 5.3.3 Input Stage.- 5.3.4 Output Drivers.- 5.3.5 Complete Amplifier.- 5.4 Conclusion.- 5.5 References.- 6 Conclusion.- 6.1 Conclusions.- 6.2 Recommendations.