Phase advance waveform generator for brushless DC actuator syste

Details Phase advance waveform generator for brushless DC actuator syste Phase advance waveform generator for brushless DC actuator syste

1982-12-20

1986-08-26

Smith, Jr., David

Electricity: motive power systems

Positional servo systems

With particular motor control system responsive to the...

318723, 318314, H02P 540

Patent

active

046085270

ABSTRACT:
This invention relates to a motor control circuit for a permanent magnet motor having a rotor and motor windings. A motor winding transformer circuit is coupled to motor windings and provides an output signal representative of the magnitude and direction of the real current present in the motor windings. A rotor speed/position sensing circuit provides an output signal representative of the motor speed and direction.

REFERENCES:
patent: 3361949 (1968-01-01), Brown et al.
patent: 3628114 (1971-12-01), Pattantyus
patent: 3824437 (1974-07-01), Blaschke
patent: 3896348 (1975-07-01), Loderer
patent: 3934184 (1976-01-01), Bonig et al.
patent: 4041361 (1977-08-01), Cornell
patent: 4042862 (1977-08-01), Franklin
Kenly et al., "Triac Speed Control of a Three-Phase Motor with Phase-Locked Loop Regulation" IEEE Transactions on Industry Applications, vol. IA-12, No. 5, Sep./Oct. 1976, pp. 492-498.

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