Temperature compensation circuit

Details Temperature compensation circuit Temperature compensation circuit

2008-07-29

2008-07-29

Le, Dinh T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

External effect

Temperature

C327S362000, C327S512000, C327S378000

Reexamination Certificate

active

07405610

ABSTRACT:
A temperature compensation circuit consists of a thermo sensitive resistance, a fixed resistance, a logic buffer, and a logic inverter, without incorporating any operational amplifier. A resistance value of the thermo sensitive resistance is changed by temperature change. The fixed resistance has a small temperature changes that is smaller than that of the thermo sensitive resistance. Both the fixed resistance and the thermo sensitive resistance are connected electrically to an output terminal of the temperature compensation circuit. The logic buffer sets the other terminal of the fixed resistance to a first voltage that is one of a voltage level of a power source and a ground level. The logic inverter sets the other terminal of the thermo sensitive resistance to a second voltage that is reversed to the first voltage.

REFERENCES:
patent: 4734553 (1988-03-01), Noda
patent: 5867031 (1999-02-01), Wang
patent: 6320450 (2001-11-01), Lee et al.
patent: 6731181 (2004-05-01), Fukayama et al.
patent: 0503898 (1992-10-01), None
patent: 2003-110367 (2003-04-01), None

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