| 摘要 |
A circuit characteristics controller (10) changes the supply voltage to circuit (12) on the basis of the characteristics of at least one transistor in circuit (12) so as to control the characteristics of circuit (12). The power source for compensation includes a threshold sensor that detects the threshold of the transistor in circuit (12) and a temperature sensor for detecting the temperature of the transistor in circuit (12). These sensors, for example, can be composed of transistors.
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