## An Introduction to Control SystemsThis significantly revised edition presents a broad introduction to Control Systems and balances new, modern methods with the more classical. It is an excellent text for use as a first course in Control Systems by undergraduate students in all branches of engineering and applied mathematics. The book contains: A comprehensive coverage of automatic control, integrating digital and computer control techniques and their implementations, the practical issues and problems in Control System design; the three-term PID controller, the most widely used controller in industry today; numerous in-chapter worked examples and end-of-chapter exercises. This second edition also includes an introductory guide to some more recent developments, namely fuzzy logic control and neural networks. |

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5-plane analog analysis applied approximately asymptotes block diagram Bode plot calculated cascade chapter characteristic equation characteristic polynomial closed-loop poles coefficients control input control systems controller design damping discrete-time eigenvalues employed example expert system feedback closed-loop system final value frequency response frequency response plot G(ju gain and phase gain dB gain margin given hence input signal Laplace transform lead compensator locus magnitude matrix means Nichols chart nonlinear Nyquist plot obtained open-loop gain open-loop system open-loop transfer function operation output signal output value overall overshoot parameters phase margin phase shift plant polynomial problem proportional controller rad/s RC circuit real axis representation sampling servomechanism shown in Fig simple simulation stability state-space steady-state error step input system input system output system transfer function transient response unit step input unity feedback closed-loop unity feedback loop unity feedback system variable vector voltage z-transform zero