Electric heating – Heating devices – With power supply and voltage or current regulation or...
Patent
1993-04-20
1995-11-07
Paschall, Mark H.
Electric heating
Heating devices
With power supply and voltage or current regulation or...
219499, 219505, 219506, 219481, H05B 102
Patent
active
054649650
ABSTRACT:
A fast and accurate temperature controller for a device heated by current through a resistive element, such as various air data probes, wherein the resistance of the element varies with temperature. The temperature controller samples the temperature by selecting the resistance value of the resistive element. Analog calculations are performed based on the instantaneous applied voltage and current returned through the resistive element. Current through the resistive element is controlled by comparing the resistance of the element to a resistance value selected in accordance with the temperature characteristics of the element. Insensitivity to voltage and frequency variations is provided with a highly reliable and uncomplicated circuit having a small number of components.
REFERENCES:
patent: 3789190 (1974-01-01), Orosy et al.
patent: 4162379 (1979-07-01), Sebens et al.
patent: 4695709 (1987-09-01), Sachs et al.
patent: 4705937 (1987-11-01), Marek
patent: 4858576 (1989-08-01), Jeffries et al.
patent: 4962300 (1990-10-01), Watanabe
McGregor John A.
Parris Robert P.
Champion Ronald E.
Honeywell Inc.
Levine Seymour
Paschall Mark H.
Udseth William T.
LandOfFree
Apparatus for controlling temperature of an element having a tem does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for controlling temperature of an element having a tem, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for controlling temperature of an element having a tem will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-198394