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Lowell T Hoffman

John P Hoffman

A battery charging system may include a permanent magnet alternator. The system uses controlled rectifiers to supply charging output from an alternator to the battery, to control the charging current and to provide a taper charge. The system may also use a voltage regulator coupled with the controlled rectifiers. The voltage regulator progressively deactivates the controlled rectifiers, in response to the state of charge of the battery, to provide a taper charge. The alternator may be used in vehicles, including automobiles, and for other electrical generating purposes.

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Bloomington, IL, United States of America

Lowell T Hoffman