Vector control for brushless DC motor

Details Vector control for brushless DC motor Vector control for brushless DC motor

1994-11-15

1995-06-20

Ro, Bentsu

Electricity: motive power systems

Switched reluctance motor commutation control

318431, 388801, H02P 620

Patent

active

054263549

ABSTRACT:
A control circuit and method for controlling an electric machine has a plurality of stator windings energized by current signals. The control circuit includes a driver circuit that generates three pulse width modulated current signals responsive to an error signal that is representative of a phase angle error, where each of the respective current signals is one phase of a three phase signal. The driver circuit also generates phase information associated with the current signals. The machine has three input terminals each of which receives a respective one of the three current signals generated by the driver circuit. A multiply circuit multiplies the terminal voltage of at least one of the three terminals with the phase information to generate the error signal.

REFERENCES:
patent: 4651068 (1987-03-01), Meshkat-Razavi
patent: 4928043 (1990-05-01), Plunkett
patent: 5006768 (1991-04-01), Rozman
patent: 5015939 (1991-05-01), Konecny
patent: 5034668 (1991-07-01), Bausch
patent: 5043643 (1991-08-01), Hedlund et al.
patent: 5223775 (1993-06-01), Mongeau
patent: 5334917 (1994-08-01), Lind
patent: 5384527 (1995-01-01), Rozman et al.

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