## Automatic control systemsStresses the theory & application of control systems with a focus on conventional analysis & design methods, state variable methods, & digital control systems. |

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### Contents

INTRODUCTION | 1 |

MATHEMATICAL FOUNDATION | 17 |

TRANSFER FUNCTION BLOCK DIAGRAM AND SIGNAL | 68 |

Copyright | |

11 other sections not shown

### Common terms and phrases

armature asymptotes Automatic Control bandwidth block diagram Bode plot breakaway points characteristic equation closed-loop system closed-loop transfer function coefficients compensated system complementary root loci complete root loci consider constant corresponds damping ratio dc motor defined determined differential equation digital control discrete-data systems eigenvalues elements equation of Eq Example feedback control system Figure friction G(ju gain formula gain margin gain-crossover frequency IEEE Trans illustrates linear system linear time-invariant system Nichols chart node nonlinear Nyquist criterion Nyquist path Nyquist plot obtained open-loop transfer function parameters phase margin phase-lag controller phase-lead PID controller polar plot pole-zero poles and zeros printwheel problem rad/sec real axis represented root contours root locus diagram rotor s-plane shown in Fig shows sides of Eq signal flow graph Sketch steady-state error step response synchro system shown Theorem torque unit step response variables vector velocity voltage written z-transform zeros of G(s)H(s