Electricity: motive power systems – Positional servo systems – With particular 'error-detecting' means
Patent
1973-10-17
1976-04-06
Dobeck, B.
Electricity: motive power systems
Positional servo systems
With particular 'error-detecting' means
318331, G05B 106
Patent
active
039492877
ABSTRACT:
A regulating arrangement comprises a subtracting amplifier having an output and two inputs, and producing at the output a voltage equal to a first factor times the voltage at one of the inputs minus a second factor times the voltage at the other of the inputs. A motor circuit is connected across the output of the subtracting amplifier. The motor circuit includes a motor connected with an impedance. The impedance is connected with the motor and with the output of the subtracting amplifier and enforces a voltage drop across the motor of magnitude differing from the voltage magnitude across the amplifier output by at least the magnitude of the voltage drop across the impedance. The voltage drop across the motor increases in magnitude as the motor current supplying energy to the motor decreases. Accordingly the voltage drop across the motor tends to increase as the motor speed increases. A command unit applies to one of the inputs of the subtracing amplifier a voltage effecting desired motion of the motor. A feedback arrangement, connected with the motor and with the other input of the amplifier, applies to the latter at least part of the voltage drop across the motor.
REFERENCES:
patent: 2913649 (1959-11-01), McKenney et al.
patent: 3412305 (1968-11-01), Kanner
patent: 3450969 (1969-06-01), Sato et al.
patent: 3617849 (1971-11-01), Charlton
patent: 3721883 (1973-03-01), Whitmore et al.
patent: 3743912 (1973-07-01), Mashimo
Stenzenberger Volkmar
Wagensonner Eduard
AGFA-Gevaert A.G.
Dobeck B.
Striker Michael J.
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