Device for position determination in sensorless motors

Details Device for position determination in sensorless motors Device for position determination in sensorless motors

2005-02-22

2005-02-22

Duda, Rina (Department: 2837)

Electricity: motive power systems

Switched reluctance motor commutation control

C318S132000, C318S434000, C318S459000, C318S500000, C388S923000, C388S928100

Reexamination Certificate

active

06859000

ABSTRACT:
A device for position determination in a sensorless direct current motor has a plurality of inductivities arranged in corresponding phases and inducing alternating voltages in a motor windings, a plurality of resistances located in phase branches to be evaluated for a position determination of a rotor position of the sensorless direct current motor, and a plurality of comparator components each associated with the corresponding phase branch to be evaluated.

REFERENCES:
patent: 4978895 (1990-12-01), Schwarz
patent: 5130620 (1992-07-01), Inaji et al.
patent: 5640073 (1997-06-01), Ikeda et al.
patent: 5783917 (1998-07-01), Takekawa
patent: 5818179 (1998-10-01), Kokami et al.
patent: 5982133 (1999-11-01), Murakami et al.

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