This is the first commercially published edition of this bestselling book by the Control Techniques company, a leading manufacturer of drives and control units to the electronics and manufacturing industries. The revised handbook has been extensively expanded and is well-written and illustrated. It is a very comprehensive guide to the technology underlying drives, motors and control units, and contains a wealth of technical information for the practicing drives and electrical engineer, while its practical approach will make it invaluable as a reference work on the shelf of every engineering department and library.Readership: Electrical and electronics engineers; manufacturing, control and systems engineers in many industries; researchers, graduate and senior undergraduate level students.