Brushless motor control system

Details Brushless motor control system Brushless motor control system

2005-09-13

2005-09-13

Leykin, Rita (Department: 2837)

Electricity: motive power systems

Open-loop stepping motor control systems

C318S685000, C318S041000, C318S045000, C318S047000

Reexamination Certificate

active

06943523

ABSTRACT:
For self-switching control of a brushless motor (10) powered by means of a predetermined electrical cycle in order to cause the rotor to advance, the control system comprises an indicator device (100) for indicating the mechanical position of the rotor, the device being associated with a detector device (50) forming an incremental coder device (150) for encoding the mechanical position of the rotor. The system also comprises a motor control assembly made up of processor means (20) for processing the signals coding the mechanical position of the rotor connected to regulator means (30) for powering the plurality of stator windings. The device for indicating the mechanical position of the rotor comprises at least one series (101) of indications of the mechanical position of the rotor corresponding to passing through one electrical cycle of the stator, whereby the incremental coder device (150) delivers the processor means with one synchronization signal for each electrical cycle.

REFERENCES:
patent: 4084248 (1978-04-01), Scott
patent: 4146908 (1979-03-01), Vandling
patent: 4710690 (1987-12-01), Reid et al.
patent: 4853602 (1989-08-01), Hommes et al.
patent: 4897589 (1990-01-01), Fujiwara et al.
patent: 5637972 (1997-06-01), Randall et al.
patent: 5913276 (1999-06-01), Kurono et al.

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