Conditions for the existence and uniqueness of DC solutions of networks containing nonlinear OpAmps with ideal model
Maurizio Ciampa, Pierangelo Terreni, Mario Poletti · 1993 IEEE International Symposium on Circuits and Systems · 2002
The authors give necessary and sufficient conditions for the existence and uniqueness of DC solutions of resistive networks containing nonlinear operational amplifiers with an ideal model. Sandberg, Willson and other authors, studying similar problems for devices with a non-ideal model, have proved the importance of two classes of matrices called class P/sub o/ and class P. Conditions are given in terms of these classes of matrices.>