CONTROL CLOSED-LOOP DEVICE AND SIGMA-DELTA MODULATOR

摘要

The present invention relates to a control device for a first closed-loop component, a second component in the feedback circuit to the loop input having a multiplicative noise. The invention also relates to a sigma-delta modulator for converting an analog input signal into a digital output signal from an analog-to-digital converter controlled in a closed loop using said device. A compensation noise is added to the input signal of the control loop, said compensation noise being equal to the control loop input signal multiplied by the multiplicative noise of the second component. Application in electronics.