CIRCUIT ARRANGEMENT COMPRISING A FEEDBACK LOOP

摘要

A description is given of a circuit arrangement comprising a feedback loop, which arrangement has a forward path for transmitting a result signal, a feedback path for deriving a feedback signal from the output signal of the forward path and a first recombining stage for recombining an input signal with the feedback signal to generate the result signal. A possibility of measuring the loop gain of the open feedback loop is then obtained by a measuring circuit for producing a measuring signal, which signal is derived from the result signal and the feedback signal by linear combination.