Servo stop system

Details Servo stop system Servo stop system

1976-10-29

1978-07-04

Schaefer, Robert K.

Electricity: motive power systems

Positional servo systems

With particular motor control system responsive to the...

346 32, G05B 1101

Patent

active

040991148

ABSTRACT:
A servo system is disclosed which produces a mechanical position varying in accordance with variations in an electrical input signal. The input signal is applied by an amplifying channel to one input of an error amplifier. The input signal amplifying channel includes an integrating amplifier and a voltage limiting device at the input to the integrating amplifier so that the signal applied to the error amplifier has a limited rate of change. A negative feedback gain determining loop is included in the amplifying channel so that at balance the signal applied to the error amplifier is directly related to the input signal. Applied to the other input of the error amplifier is a signal representative of the positional output from the servo system to form a second rebalanceable loop system. A switched stop circuit is connected from the output of the error amplifier to the input of the integrating amplifier to permit the servo system to be stopped and subsequently to restore the system to normal operation with the rate of change of position of the servo limited by the integrating amplifier.

REFERENCES:
patent: 3201675 (1965-08-01), Curran et al.
patent: 3523193 (1970-08-01), Hutcheon
patent: 3652913 (1972-03-01), Leland
patent: 3662275 (1972-05-01), Riley

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