Electricity: motive power systems – Limitation of motor load – current – torque or force
Reexamination Certificate
2006-09-12
2006-09-12
Masih, Karen (Department: 2837)
Electricity: motive power systems
Limitation of motor load, current, torque or force
C318S139000, C318S618000, C318S610000, C318S616000
Reexamination Certificate
active
07106020
ABSTRACT:
Methods and devices for brushless DC motor operation. An example method may include using previously sensed Hall effect sensor transitions to predict a future Hall effect transition, and dividing a time between a most recent Hall effect sensor transition and the predicted Hall effect sensor transition into time increments. The time increments may be used to effect phase advance by selecting a number of time increments to create a time offset for phase advance purposes. The time increments may also be used as a virtual encoder. Devices incorporating controllers and control circuitry for performing like methods are also discussed.
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Ansems Gregory M.
Honeywell International , Inc.
Masih Karen
LandOfFree
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