Previous ed.: London : Peregrinus, 1992.

Includes bibliographical references and index.

Stepping motors -- Multi-stack variable-reluctance stepping motors -- Principles of operation -- Aspects of design -- Single-stack variable-reluctance stepping motors -- Hybrid stepping motors -- Comparison of motor types -- Drive circuits -- Unipolar drive circuit -- Design example -- Bipolar drive circuit -- Bifilar windings -- Accurate load positioning: static torque characteristics -- Static torque/rotor position characteristics -- Position error due to load torque -- Choice of excitation scheme -- Variable-reluctance motors -- Hybrid motors -- Mini-step drives -- Load connected to the motor by a gear -- Load connected to the motor by a leadscrew -- Multi-step operation: torque/speed characteristics -- Relationship between pull-out torque and static torque -- Mechanical resonance -- The mechanism of resonance -- The viscously coupled inertia damper -- Electromagnetic damping -- High-speed operation -- Pull-out torque/speed characteristics for the hybrid motor -- Circuit representation of the motor -- Calculation of pull-out torque -- Pull-out torque/speed characteristics for the variable-reluctance motor -- Circuit representation of the motor -- Torque correction factor -- Calculation of pull-out torque -- Drive circuit design -- Drive requirements -- Bilevel drive -- Chopper drive -- Instability -- Open-loop control -- Starting/stopping rate -- Acceleration/deceleration capability -- Implementation of open-loop control -- Microprocessor generated timing -- Hardware timing -- Pulse deletion -- Analogue ramp up/down.

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