Method for regulating the power supply to a direct-current motor

Details Method for regulating the power supply to a direct-current motor Method for regulating the power supply to a direct-current motor

1982-01-22

1984-08-28

Weldon, Ulysses

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318315, 318331, 318455, 318458, G05B 500

Patent

active

044685971

ABSTRACT:
The power supply to an electric actuating motor is regulated by reducing the differences between current intensity or voltage and a reference value. Two transducers measure the current intensity and the voltage. A selection stage chooses the higher of the two values and a comparison stage delivers a difference signal with respect to the reference value established by a stage of the potentiometer type. A regulator produces an action which is compared within a comparator with a sawtooth signal emitted by an oscillator. Depending on the sign of the comparison, a control stage supplies the motor during a variable fraction of the period of the oscillations.

REFERENCES:
patent: 3230440 (1966-01-01), Kleiner
patent: 3432726 (1969-03-01), Meyer et al.
patent: 3443189 (1969-05-01), Gilbreath
patent: 3538426 (1970-11-01), Jones
patent: 3694720 (1972-09-01), Nakajima
patent: 3727103 (1973-04-01), Finch et al.
patent: 4180768 (1979-12-01), Ferraro

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