Feedback Loop Stability Analysis

Avoiding complicated mathematics and shunning dependence on computers, this book emphasizes minimum phase characteristics in order to optimize performance and to simplify analysis and design. New design curves for second- and third-order minimum phase systems are developed to give closed-loop stability characteristics, both time and frequency domain, as a function of open-loop frequency domain parameters, with an emphasis on simplicity. Finally, the methods are extended to accommodate transport lags and systems of any higher order. Annotation c. by Book News, Inc., Portland, Or.

Feedback Loop Stability Analysis. Now you can exploit minimum phase characteristics-and simplify the analysis and design of high-performance feedback circuits-without all the complex math! Every electronic circuit designer knows how seriously incontrolled feedback can degrade circuit performance, but practical solutions have been hard to come by-and even harder to understand and apply. Feedback Loop Stability analysis offers a vastly simpler approach to feedback control. Focusing on minimum phase characteristics and new design curves for second- and third-order minimum phase systems, this text makes it easier than ever to optimize performance and streamline circuit analysis and design. The modest level of mathematics required by this book enables anyone-engineers, researchers, college and technical students-to better understand the virutes and stability problems of feedback systems. it provides detailed coverage of such topics as: Bode plots and Bode's weighting function; Loop characteristics, transfer functions, excess phase, and transducers; All types of loops-one-, two-, and three-time constant; Loop compensation, time domain characteristics, op amps, and PID control; Transport lags, other complications, and comparison of methdos. This concise illuminating book renders a difficult, fundamental topic intuitively accessible-while reducing the reader's dependence on computers, cleverly relating the mathematics involved to physical reality, and teaching the old-fashioned technique of confidently using simple tools to successfully solve complex problems. design