Electronic controller for predetermined temperature coefficient

Details Electronic controller for predetermined temperature coefficient Electronic controller for predetermined temperature coefficient

1985-02-15

1987-09-15

Paschall, M. H.

Electric heating

Heating devices

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

219205, 219508, 219505, 123179H, H05B 102

Patent

active

046941452

ABSTRACT:
An electronic controller for a predetermined temperature coefficient heater provides solid state control of the application of power to the heater. In particular, a positive temperature coefficient glow plug wherein the heater is plated on a ceramic substrate glow plug is controlled by contactless solid state controller. The temperature of the glow plug is sampled by a clock signal and compared with a predetermined temperature value. Pulsed power is supplied to elevate and maintain the temperature of the heater to the predetermined value. In a complete motor vehicle engine wherein one glow plug is used in each cylinder, one glow plug is sampled and controls the remainder of the plugs.

REFERENCES:
patent: 3789190 (1974-01-01), Orosy et al.
patent: 4010412 (1977-03-01), Forman
patent: 4245148 (1981-01-01), Gisske et al.
patent: 4377138 (1983-03-01), Mitani et al.
patent: 4478181 (1984-10-01), Kikuchi et al.
patent: 4500775 (1985-02-01), Sangu et al.
patent: 4511792 (1985-04-01), Kawamura

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