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Redundant speed control for brushless Hall effect motorA speed control system for a brushless Hall effect device equipped direct current (D.C.) motor is described. Separate windings of the motor are powered by separate speed responsive power sources. A change in speed, upward or downward, because of the failure of a component of one of the power sources results in a corrective signal being generated in the other power source to supply an appropriate power level and polarity to one winding to cause the motor to be corrected in speed.
Document ID
19730023375
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Nola, F. J. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
September 2, 2013
Publication Date
September 4, 1973
Subject Category
Electronic Equipment
Report/Patent Number
Patent Number: NASA-CASE-MFS-20207-1
Patent Application Number: US-PATENT-APPL-SN-239574
Patent Number: US-PATENT-3,757,183
Accession Number
73N32107
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-MFS-20207-1|US-PATENT-3,757,183
Patent Application
US-PATENT-APPL-SN-239574

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