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Dynamically Timed Electric MotorA brushless DC motor including a housing having an end cap secured thereto. The housing encloses a rotor. a stator and a rotationally displaceable commutation board having sensors secured thereon and spaced around the periphery of the rotor. An external rotational force is applied to the commutation board for displacement of the sensors to various positions whereby varying feedback signals are generated by the positioning of the sensors relative to the rotating rotor. The commutation board is secured in a fixed position in response to feedback signals indicative of optimum sensor position being determined. The rotation of the commutation board and the securing of the sensors in the desired fixed position is accomplished without requiring the removal of the end cap and with the DC motor operating.
Document ID
19980029701
Acquisition Source
Marshall Space Flight Center
Document Type
Other - Patent
Authors
Casper, Ann M.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Date Acquired
August 17, 2013
Publication Date
August 5, 1997
Subject Category
Electronics And Electrical Engineering
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-Case-MFS-28958-1|US-Patent-5,654,599
Patent Application
US-Patent-Appl-SN-365880
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