To provide a load fluctuation correction circuit having a function of correcting the change in the current consumption amount due to the change in the driving state of a logic circuit, thereby suppressing the change in the source voltage applied to the logic circuit. The present invention provides a load fluctuation correction circuit for correcting the source voltage applied to a logic circuit, comprising: a delay circuit which is designed such that upon the source voltage which is to be supplied to the logic circuit is applied to the delay circuit as a power supply, it outputs a received cycle signal with a predetermined delay time, and which operates with the source voltage supplied to the logic circuit as a power supply; a current consumption circuit provided such that it shares a power supply with the logic circuit; and a phase comparison circuit which controls the current amount consumed by the current consumption circuit such that the phase difference between the cycle signal input to the delay circuit and the signal output from the delay circuit matches a predetermined period of time.