Drive systems for a brushless motor employing predefined driving

Details Drive systems for a brushless motor employing predefined driving Drive systems for a brushless motor employing predefined driving

1997-03-18

1998-12-01

Ro, Bentsu

Electricity: motive power systems

Limitation of motor load, current, torque or force

318254, 318432, 318721, 318724, 388904, H02P 610

Patent

active

058443886

ABSTRACT:
The torque characteristic of an electrically driven brushless motor may be optimized by driving the phase windings of the motor with predefined, digitized and stored current or voltage profiles. Appropriate sequences of digital samples of the predefined driving profile are sequentially read from a nonvolatile memory where they are permanently stored to drive, through a DAC, the relative winding of the motor in synchronism with a signal representative of the rotor position.

REFERENCES:
patent: 4525657 (1985-06-01), Nakase et al.
patent: 4868477 (1989-09-01), Anderson et al.
patent: 5223775 (1993-06-01), Mongeau
patent: 5272424 (1993-12-01), Lee
patent: 5444341 (1995-08-01), Kneifel, II et al.
patent: 5469215 (1995-11-01), Nashiki

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