Title: Power conversion apparatus

Abstract: An improved motor control system in which cooperative interaction of a simplified programmed IR compensation structure and economical thermally compensated speed reference-error comparator combination result in an improved polluted power notch-immune synchronizing performance achieved with economy of components and incidental heating.

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Inventors: Wisman, Franklin O. (Chambersburg, PA, US)

Application Number: 605621
Filing Date: 1975-08-13
Publication_date: 1977-03-01
Assignee: T. B. Wood's Sons Company (Chambersburg, PA)
Primary Class(es): 323/244 323/245, 388/821, 388/902, 388/903, 388/934
Other Classes:
US Patent Ref:

3373331	Mar, 1968	Dow	318/317.
3555386	Jan, 1971	Wisman	318/317.
3617844	Nov, 1971	Grygera	318/331.

Other Refs:
Primary Examiner: Pellinen, A. D.
Assistant Examiner:
Attorney: Fishburne, Jr.; B. P.