Electricity: motive power systems – Switched reluctance motor commutation control
Reexamination Certificate
2005-11-29
2005-11-29
Fletcher, Marlon T. (Department: 2837)
Electricity: motive power systems
Switched reluctance motor commutation control
C318S132000, C318S434000, C318S700000, C318S720000, C318S721000, C318S722000, C318S432000
Reexamination Certificate
active
06969962
ABSTRACT:
A DC motor drive circuit includes a position detector for producing an output signal that corresponds to a rotational position of the rotor, a current controller for controlling current supply to the winding in accordance with the output signal of the position detector, and a phase advancing portion for the current between the position detecting portion and the current controller, so that the timing for supplying current to the winding is advanced and efficiency of converting the current supplied to the winding into a motor torque is improved.
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Fletcher Marlon T.
Judge Patent Firm
Nidec Corporation
Smith Tyrone
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