Brushless motor apparatus

Details Brushless motor apparatus Brushless motor apparatus

2007-04-27

2011-10-18

Santana, Eduardo Colon (Department: 2837)

Electricity: motive power systems

Synchronous motor systems

Brushless motor closed-loop control

C318S400380, C310S179000

Reexamination Certificate

active

08040085

ABSTRACT:
A brushless motor apparatus includes a fixedly arranged stator14, a rotor12rotated in a manner sequentially excited by a plurality of excitation patterns, a magnetic-pole-position detecting magnet16fixed to the rotor and having twice the number of poles of the rotor, and a position detecting element18arranged opposite to the magnetic-pole-position detecting magnet and detecting the position of magnetic poles of the rotor, and further includes a motor drive circuit serving as a control such that when the stator is excited with a different excitation pattern between regular excitation patterns on normal operation at the time of phase matching carried out upon actuation of a power source, the rotation angle of the rotor is one-half the rotation angle corresponding to the regular excitation pattern.

REFERENCES:
patent: 5723931 (1998-03-01), Andrey
patent: 6396225 (2002-05-01), Wakui et al.
patent: 6512341 (2003-01-01), Matsushiro et al.
patent: 7541760 (2009-06-01), Lin et al.
patent: 2006/0113949 (2006-06-01), Nishimura et al.
patent: 1-308192 (1989-12-01), None
patent: 2-237490 (1990-09-01), None
patent: 7-222485 (1995-08-01), None
patent: 2002-252958 (2002-09-01), None
patent: 2002-369576 (2002-12-01), None
patent: 2005-312145 (2005-11-01), None

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