Integrated Audio Amplifiers in BCD Technology

"Integrated Audio Amplifiers in BCD Technology" describes the design at Audio Amplifiers using a Bipolar CMOS DMOS (BCD) process. It shows how the combination of the three processes, made available by advances in process technology, gives rise to the design of more robust and powerful audio amplifiers which can be more easily implemented in digital and mixed-signal circuits. "Integrated AudioAmplifiers in BCD Technology" starts with an introduction to audio amplifiers which includes a comparison of amplifier classes, general design considerations and a list of specifications for integrated audio power amplifiers. This is followed by an extensive discussion of the properties of DMOS transistors which are the key components in BCD technologies. Then the theory and the design of chargepump circuits is considered. In most BCD technologies only n-type DMOS transistors are available. Therefore a boosted supply voltage is required to achieve rail-to-rail output capability which can be generated with a chargepump. The new solutions that are found can also be used for many applications where DC-DC conversion with low output ripple is needed. The book is suitable for practising analogue engineers and researchers, and as a text for an advanced course on the subject.