Fig. 7

Bifurcation diagram on the system output \(U_1\) as a function of the frequency \({\varOmega _{\textrm{H}}}\) of the high-frequency signal. Other parameters: \(A = 0.7 \,\textrm{V}\), \(\omega _{\textrm{L}} = 50.0 \,\textrm{Hz}\), \(B = 4.0 \,\textrm{V}\).