Torque repeater self-driver

Details Torque repeater self-driver Torque repeater self-driver

1976-11-22

1978-07-25

Dobeck, B.

Electricity: motive power systems

Positional servo systems

With particular 'error-detecting' means

318660, 318661, G05B 106

Patent

active

041032152

ABSTRACT:
A device employing the inherent self-torquing properties of a torque repeater to position its rotor. In the present invention, the torque repeater or synchro may have three stator windings and an output rotor. It is contemplated that the electrical input to the device will be digital signals. However, the invention will perform equally well with time varying or analogue input signals. A plurality of electronic switching means are connected to the stator terminals of the synchro converter and they operate under the control of a programmable switch control to short-circuit predetermined stator windings to provide the desired positional output signals. A sectant detector connected to the stator windings detects signals on the stator windings and determines the present position of the rotor. From this information, the desired positioning of the rotor is attained from the signals from the sectant detector. A duty cycle drive means acting in concert with the sectant detector positions the torque repeater between sectant positions. An alternative to the sectant detector is the provision of an A/D converter used to drive the switching means to allow the torque repeater to self-drive to the desired output position.

REFERENCES:
patent: 3353095 (1967-11-01), Farrand
patent: 3419774 (1968-12-01), Hartley
patent: 3555542 (1971-01-01), Guiot
patent: 3562740 (1971-02-01), Watkins

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