Large-signal stability analysis: calculation of the frequency response corresponding to
the system linearization around its large-signal periodic regime. Figure
represents the principle of a large signal analysis, with connected in parallel,
a sinusoidal small-signal current source iin at a circuit node. The
system has two frequencies, the frequency of the input drive, fin, and
the frequency of the perturbation source, fs. Therefore, a mixer-like
HB analysis with conversion-matrix techniques, sweeping the frequency
fs of the small signal current source. Figure: Large-signal stability analysis
