Control system and methods of making and operating the same

Details Control system and methods of making and operating the same Control system and methods of making and operating the same

1989-07-06

1991-07-02

Paschall, M. H.

Electric heating

Heating devices

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

219501, 219492, 219505, 307117, H05B 102

Patent

active

050292447

ABSTRACT:
A control system and methods of making and operating the control system are provided, the system comprising an RTD temperature sensor, an applying unit operatively interconnected to the sensor for applying a varying voltage across the sensor and thereby providing a certain current level through the sensor for each certain voltage value being applied across the sensor while the sensor is sensing a certain temperature, and a microcomputer operatively interconnected to the sensor and the applying unit for determining from the voltage being applied across the sensor the actual temperature being sensed by the sensor, the applying unit comprising a charge pump arrangement.

REFERENCES:
patent: 4317018 (1982-02-01), Denny et al.
patent: 4782215 (1988-11-01), Kadwell et al.
patent: 4814583 (1989-03-01), Rainey
patent: 4829161 (1989-05-01), Kadwell et al.

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