This book describes the basic operation of microprocessor supervisory circuits and how to use manufacturer date sheets to make your components selections, as well as the internal operations of various commonly-available ICs and how to select and modify them.

Simplified Design of Filter Circuits, the eighth book in this popular series, is a step-by-step guide to designing filters using off-the-shelf ICs. The book starts with the basic operating principles of filters and common applications, then moves on to describe how to design circuits by using and modifying chips available on the market today. Lenk's emphasis is on practical, simplified approaches to solving design problems. - Contains practical designs using off-the-shelf ICs - Straightforward, no-nonsense approach - Highly illustrated with manufacturer's data sheets

Introduction to Schematic Capture * Installation and Configuration * OrCAD Basics * Hierarchical Design * Post Processing * Library Editor * Advanced Features * Command Reference * Tips and Techniques.

Simplified Design of Data Converters shows how to design and experiment with data converters, both analog-to-digital and digital to analog. The design approach here is the same one used in all of John Lenk's best-selling books on simplified and practical design. Throughout the book, design problems start with guidelines for selecting all components on a trial-value basis, assuming a specific design goal and set of conditions. Then, using the guideline values in experimental circuits, the desired results are produced by varying the experimental component values, if needed. If you are a working engineer responsible for designing data-converters circuits, or selecting IC data converters, the variety of circuit configurations described here should generally simplify your task. Not only does the book describe converter-circuit designs, but it also covers the most popular forms of data-converter ICs available. Throughout the book, you will find a wealth of information on data-converter ICs and related components. For all skill levels Tells how to design and build data-converter circuits from scratch

Simplified Design of Micropower and Battery Circuits provides a simplified, step-by-step approach to micropower and supply cell circuit design. No previous experience in design is required to use the techniques described, thus making the book well suited for the beginner, student, or experimenter as well as the design professional. Simplified Design of Micropower and Battery Circuits concentrates on the use of commercial micropower ICs by discussing selections of external components that modify the IC-package characteristics. The basic approach is to start design problems with approximations for trial-value components in experimental circuits, then to vary the component values until the desired results are produced. Although theory and mathematics are kept to a minimum, operation of all circuits is described in full. EDITOR'S CHOICE - Electronics (The Maplin Magazine), May 1996 John D. Lenk has been a technical author specializing in practical electronic design and troubleshooting guides for more than 40 years. An established writer of international best-sellers in the field of electronics, Mr. Lenk is the author of more than 80 books on electronics, which together have sold well over two million copies in nine languages. Uses commercially available micropower ICs No design experience required Minimal theory and mathematics; full circuit operation described

Divided Soul represents photojournalist David Alan Harvey's 20-year journey through the Spanish and Portuguese diaspora. In this selection of over 100 colour photographs Harvey explores the exuberance and incongruities of Hispanic life and culture that hold for him an endless fascination.