Temperature compensation voltage-generating circuit

Details Temperature compensation voltage-generating circuit Temperature compensation voltage-generating circuit

1994-10-18

1997-04-15

Wong, Peter S.

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

323281, 323907, G05F 316

Patent

active

056213069

ABSTRACT:
The invention provides a voltage-generating circuit in which the characteristic of the output voltage in response to the ambient temperature is represented by a predetermined line. A temperature sensor outputs a voltage in proportion to the ambient temperature, and the voltage is inversely amplified by an operational amplifier. An optimum operating voltage V.sub.op for a liquid crystal is output from an output terminal of a variable voltage regulator, in response to the voltage output ted from the operational amplifier.

REFERENCES:
patent: 4298835 (1981-11-01), Rowe
patent: 5198747 (1993-03-01), Haight
patent: 5408173 (1995-04-01), Knapp
patent: 5453678 (1995-09-01), Bertolini et al.

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