Special cases of Fliege´s complementary transformation for multiamplifier networks

Fliege´s complementary transformation preserves the denominator of a network´s voltage transfer ratio but does not predict the numerator, which has to be determined by analysis. A special case of this transformation has already been published, for which the new numerator is given directly and for which the initial network is composed of two admittances plus a general subnetwork linked to an operational amplifier. The letter presents additional special cases of Fliege´s transformation for which the new numerator is also given directly, but the initial network is now composed of two general subnetworks, each of which is linked to an operational amplifier.