The Circuit Designer

The Circuit Designer's Companion

Tim Williams' Circuit Designer's Companion provides a unique masterclass in practical electronic design that draws on his considerable experience as a consultant and design engineer. As well as introducing key areas of design with insider's knowledge, Tim focuses on the art of designing circuits so that every production model will perform its specified function – and no other unwanted function - reliably over its lifetime. The combination of design alchemy and awareness of commercial and manufacturing factors makes this an essential companion for the professional electronics designer. Topics covered include analog and digital circuits, component types, power supplies and printed circuit board design. The second edition includes new material on microcontrollers, surface mount processes, power semiconductors and interfaces, bringing this classic work up to date for a new generation of designers.

Professional electronics design community, advanced amateur electronics designers, electronic engineering students and profs looking for a book with a real-world design outlook.


Published: November 2004

Imprint: Newnes

ISBN: 978-0-7506-6370-0


  • "Listed as noteworthy book by Bill Schweber from EDN Magazine. This broad-ranging book teaches considerations you wish you knew about when you finished school and had a real project to work on but doesn't assume a simplistic problem-solution approach." - EDN Feb 2005


  • Introduction1. Grounding and wiring1.1 Grounding1.2 Wiring and cables1.3 Transmission lines2. Printed circuits2.1 Board types2.2 Design rules2.3 Board assembly: surface mount and through hole2.4 Surface protection2.5 Sourcing boards and artwork3. Passive components3.1 Resistors3.2 Potentiometers3.3 Capacitors3.4 Inductors3.5 Crystals and resonators4. Active components4.1 Diodes4.2 Thyristors and triacs4.3 Bipolar transistors4.4 Junction Field Effect transistors4.5 MOSFETs4.6 IGBTs5. Analogue integrated circuits5.1 The ideal op-amp5.2 The practical op-amp5.3 Comparators5.4 Voltage references5.5 Circuit modelling6. Digital circuits6.1 Logic ICs6.2 Interfacing6.3 Using microcontrollers6.4 Microprocessor watchdogs and supervision6.5 Software protection techniques7. Power supplies7.1 General7.2 Input and output parameters7.3 Abnormal conditions7.4 Mechanical requirements7.5 Batteries8. Electromagnetic compatibility8.1 The need for EMC8.2 EMC legislation and standards8.3 Interference coupling mechanisms8.4 Circuit design and layout8.5 Shielding8.6 Filtering8.7 Cables and connectors8.8 EMC design checklist9. General product design9.1 Safety9.2 Design for production9.3 Testability 9.4 Reliability9.5 Thermal managementAppendixStandardsBibliographyIndex


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