Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1998-01-21
2000-05-30
Enad, Elvin
Electrical generator or motor structure
Dynamoelectric
Rotary
310 67B, 310 67R, 310 91, 310216, 310217, 310218, 310 42, H02K 516, H02K 708
Patent
active
060694289
ABSTRACT:
A brushless dc motor assembly including control electronics for allowing variable speed, user-controlled motor operation. The control electronics are connected to a control board which is mounted directly to the motor bearing bracket. Hall effect devices for providing rotor rotational position information to the electronics are connected directly to the control board and extend therefrom to a position adjacent the rotor. The electronics control current through the stator winding through a MOSFET H-bridge circuit in dependence of feedback signals from the hall effect devices, a user-controlled enable signal, a motor winding current limit signal, and an under voltage signal.
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Enad Elvin
Fasco Industries, Inc.
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