Control circuit for fast heating of a...

Details Control circuit for fast heating of a... Control circuit for fast heating of a...

2011-08-09

2011-08-09

Paschall, Mark (Department: 3742)

Electric heating

Heating devices

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

C219S497000, C219S499000, C219S505000

Reexamination Certificate

active

07994455

ABSTRACT:
Traditional temperature-control products have the problem that the temperature of the working surface reaches the setting temperature too slowly when heating up or recovering from a temperature drop. A traditional temperature control circuit and temperature-settings selector components are modified to solve this problem. When heating begins, the modified circuit increases the initial setting temperature to be above the target setting temperature. The modified circuit then adjusts the setting temperature by measuring the heating power consumption. Once the working surface of the temperature control product reaches the initial setting temperature, the heating power consumption drops and the modified circuit reduces the temperature setting to the target setting temperature. The temperature control product can rapidly achieve the target temperature. A positive-temperature-coefficient heating component is used in the temperature control product.

REFERENCES:
patent: 3789190 (1974-01-01), Orosy et al.
patent: 4086466 (1978-04-01), Scharlack
patent: 4443690 (1984-04-01), Payne et al.
patent: 4549074 (1985-10-01), Matsuo
patent: 4564749 (1986-01-01), Ishima
patent: 6350968 (2002-02-01), Connolly et al.

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