BIAS CONTROLLING APPARATUS

摘要

The present invention relates to a bias controlling apparatus capable of improving the performance of a transistor. A temperature compensation circuit outputs a compensation bias current by adding or reducing a control current to a reference current by using a generated digital signal and generating the digital signal corresponding to the temperature of the transistor. A bias compensation circuit outputs and compensates for the bias power applied to the transistor by using a compensation signal, a compensation bias current, a characteristic compensation circuit outputting a compensation signal for compensating for characteristic error and detecting the characteristic error of a mirror transistor connected in parallel to the transistor. [Reference numerals] (100) Temperature compensation circuit;(200) Characteristic compensation circuit;(300) Bias compensation circuit;(400) Transistor