And a method for the output circuit of the power supply voltage temperature compensation of the variable power supply

摘要

PROBLEM TO BE SOLVED: To provide a circuit of outputting a temperature compensation power voltage from variable power and a method therefor, capable of compensating for a deterioration in output characteristics of a regulator due to the temperature change by using the regulator in only one stage in a circuit having a large-width variable power voltage.;SOLUTION: A circuit of outputting a temperature compensation power voltage from variable power includes: a regulator circuit unit 610 converting the variable power into a predetermined voltage desired by a system; a resistance compensation circuit unit 620 provided at an output terminal of the regulator circuit unit 610, and compensating for a change in a resistance value due to the temperature change; and a temperature sensor 630 sensing a change in surrounding temperature of an electronic circuit system employing the regulator circuit unit 610 and supplying an output value corresponding to the sensed temperature change to the resistance compensation circuit unit 620, to thereby allow the resistance compensation circuit unit 620 to compensate for the change in a resistance value due to the temperature.;COPYRIGHT: (C)2014,JPO&INPIT