Two step phase reset gyro motor power supply

Details Two step phase reset gyro motor power supply Two step phase reset gyro motor power supply

1980-09-03

1982-07-13

Smith, Jr., David

Electricity: motive power systems

Synchronous motor systems

Antihunting or damping

318701, 318318, H02P 540

Patent

active

043397034

ABSTRACT:
A gyro motor supply provides an alternating signal to a gyro hysterisis motor. A detector senses the passage of a reference point on the gyro flywheel during each revolution thereof. A logic circuit is driven by the detector output and controls the phase of the alternating signal thereby ensuring a repeatable gyro start-up condition wherein the phasing is fixed between the reference point on the flywheel and a vector of the rotating field of the motor.

REFERENCES:
patent: 3500160 (1970-03-01), Sommer
patent: 3546553 (1970-12-01), Loyd
patent: 3829747 (1974-08-01), Woolfson et al.
patent: 4266432 (1981-05-01), Schroeder et al.

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