Mid-value circuit and control system

Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...

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Details

323275, 323280, 323367, 219499, G05F 144

Patent

active

046331638

ABSTRACT:
A control system for regulating a system parameter includes three sensing elements to independently sense a single system parameter and provide respective feedback signals. Three substantially identical controllers are responsive to these feedback signals with the controllers each having a bridge network of three resistors and being connected to a common resistor. In response to the feedback signals and signals representative of the imbalance in the bridge networks, the controllers act to cause bridge balance by collectively supplying current to the common resistor to effect a balance and to thus control the system parameter in accordance with the middle valued of the three feedback signals.

REFERENCES:
patent: 3383585 (1968-05-01), Gately
patent: 3678370 (1972-07-01), Gately
patent: 3918636 (1975-11-01), Dawson

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