Temperature control device

Details Temperature control device Temperature control device

1975-07-16

1977-10-11

Beha, Jr., William H.

Electric heating

Heating devices

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

219506, G05D 2324

Patent

active

040537331

ABSTRACT:
A temperature control device in which electric power to be supplied to a heating element is controlled correspondingly to pulse intervals applied to a switch circuit with the pulse intervals adapted to vary according to the temperature of the portion to be heated by the heating element, which temperature control device is further provided with a sensor for detecting the pulse intervals when the temperature of the portion to be heated has reached a predetermined level with the signal from the sensor being utilized as the signal for the completion of warming-up of the portion to be heated.

REFERENCES:
patent: 3577177 (1971-05-01), Hewlett
patent: 3678247 (1972-07-01), Sawa et al.
patent: 3819960 (1974-06-01), Kohn
patent: 3821516 (1974-06-01), Hayes
patent: 3838248 (1974-09-01), Uchida et al.
patent: 3946199 (1976-03-01), Nakamura
RCA Solid State Div., "Linear Integrated Circuits Appl. Notes" Geo. Goanieri, pp. 1-12, Mar. 1970.

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