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Probably best known as the author of the hymn "Amazing Grace," John Newton (1725-1807) is now largely forgotten among evangelical Christians. But it is worth recalling something of Newton's remarkable story. His parish ministry, practice of spiritual direction, and the integrity of his personal relationships make him a trustworthy guide for Christians today.

Recent years have brought substantial developments in electrical drive technology, with the appearance of highly rated, very-high-speed power-electronic switches, combined with microcomputer control systems.

This popular textbook has been thoroughly revised and updated in the light of these changes. It retains its successful formula of teaching through worked examples, which are put in context with concise explanations of theory, revision of equations and discussion of the engineering implications. Numerous problems are also provided, with answers supplied.

The third edition includes...