Control systems

Details Control systems Control systems

1976-07-13

1978-12-19

Truhe, J. V.

Electric heating

Heating devices

With power supply and voltage or current regulation or...

H05B 102

Patent

active

041307534

ABSTRACT:
This invention relates to a control system which comprises a sensor for monitoring a selected variable and providing an electrical signal which is a function of said variable; a reference source operable to provide a reference at an output thereof which varies over a predetermined time period; and a comparator circuit coupled to the sensor and the reference voltage source. The comparator circuit compares the electrical signal with said reference signal and provides a control signal in dependence upon the comparison.

REFERENCES:
patent: 3566079 (1971-02-01), O'Neill
patent: 3571564 (1971-03-01), Welch
patent: 3891817 (1975-06-01), Brown
patent: 3968346 (1976-07-01), Cooksley

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