Temperature control system for an electronic device which achiev

Details Temperature control system for an electronic device which achiev Temperature control system for an electronic device which achiev

1997-04-04

1998-10-13

Paschall, Mark H.

Electric heating

Heating devices

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

219209, 219497, 219548, 324760, 437248, H05B 102

Patent

active

058215050

ABSTRACT:
A temperature control system comprises: an electric heater that has a first face which makes contact with an electronic device, and a second face which is opposite the first face; a heat sink, coupled to the second face of the heater, which absorbs heat from the electronic device through the heater's second face; and a temperature sensor, coupled to the electronic device which senses the device temperature T.sub.d. A control circuit is coupled to the device temperature sensor and to the heater; and it decreases the power to the heater when the sensed temperature of the electronic device is above the set point, and vice-versa. When the heater temperature T.sub.h is less than T.sub.d, then heat flows from the electronic device through the heater to the heat sink; and the rate of heat flow increases as T.sub.d -T.sub.h increases. When T.sub.h is more than T.sub.d, then heat flows to the electronic device from the heater; and the rate of heat flow increases as T.sub.h -T.sub.d increases.

REFERENCES:
patent: 5021630 (1991-06-01), Benko et al.
patent: 5104480 (1992-04-01), Wojnarowski et al.
patent: 5194710 (1993-03-01), McDaniel et al.
patent: 5255022 (1993-10-01), Burolla
patent: 5420521 (1995-05-01), Jones
patent: 5525300 (1996-06-01), Danssaert et al.
patent: 5541524 (1996-07-01), Tuckerman et al.
patent: 5570032 (1996-10-01), Atkins et al.

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