*5.3.2. Characteristics near to Neimark-Sacker bifurcation*

Before the Neimark-Sacker bifurcation the converter has a stable fixed point or T-periodic orbit. After the Neimark-Sacker bifurcation the converter has quasi-periodic behavior and 2D-torus birth. The bifurcation diagram and the characteristic multipliers in the Neimark-Sacker transition are shown in figure 10 (*c*).
