Externally indexed torrent

If you are the original uploader, contact staff to have it moved to your account

Textbook in PDF format

Amplifier design is very often regarded as making a selection from the large arsenal of known amplifier circuits and then adapting it for a specific purpose, possibly with the aid of computer-aided-design programs. Now and then designers are surprised by the introduction of a new amplifier circuit performing better in some respect than the others. Each aspiring designer has to find his own way in this jungle. He has to choose from a rather chaotic and scattered collection of amplifier circuits rather than apply a systematic and straightforward design sequence that enables him to design his special-purpose amplifier circuit. A great deal of experience is essential. This work is an attempt to make a useful contribution to the extensive literature on the subject of amplifier design. It can be justified on the grounds that the approach is believed to be unique in a number of respects. Many works that promise to cover the subject are instead concerned with analysis. Moreover, they frequently deal specifically or separately with particular design aspects, characterised by descriptions such as ‘wide-band’, ‘low-noise’, ‘low-distortion’, etc. A treatment of the various design aspects and their interconnections, however, is necessary for fruitful amplifier design. At the basis of such a treatment lies the observation — usually easily overlooked — that amplifier design is concerned inthe first place with obtaining an adequate quality of information transfer. Amplifiers are more than electronic circuits merely bringing the source power up to a higher level. Quality requirements are imposed on the signal transfer relative to the type of information and to the manner of perception, registration, or processing. The quality of information transfer is determined by a large number of quality aspects such as linearity, accuracy, efficiency, signal-to-noise ratio, etc. Unfortunately, it cannot be expressed as a quantitative figure of merit Trade-offs between various quality aspects are likely to emerge. Sometimes they will be of a fundamental nature and are imposed by physical and technological limitations, but frequently they will result from the nature of a specific amplifier circuit itself, which — on second thoughts — might not be the most appropriate one to fulfil the desired function. A systematic, straightforward design approach is presented in this work. It is more or less inspired by the work of Cherry and Hooper1 which I consider one of the finest design treatises. The present work is more concerned with basic design considerations. Preference was given to a qualitative rather than to a quantitative approach. Finding the proper configurations for the basic amplifier and of the amplifier stages is considered of primary importance and is emphasised here. This book is therefore largely concerned with the design phase preceding the phase in which existing computer aids can be helpful. The approach is characterised best by describing it as a systematic and consistent arrangement of design considerations regarding various quality aspects of information transfer. Via the classifications of amplifier configurations, a systematic design method for negative-feedback amplifiers is developed