Brumbach Electronic variable speed drives / Michael E. Brumbach. - 3rd ed.. - Clifton Park Thomson Delmar Learning 2006. - x, 248p. ill. 25cm Includes index p.243 - 248 ISBN: 140188962X Subjects--Topical Terms: Electric driving, Variable speedVariable speed Dewey Class. No.: 621.46 BRU 2006