Study on Nonlinear Phenomena in Buck-Boost Converter with Switched-Inductor Structure

Figure 4

The Poincare sections under different value of reference current. (a) 𝐼_ref=2 A; (b) 𝐼_ref=4  A; (c) 𝐼_ref=5.8 A; (d) 𝐼_ref=6.1 A; (e) 𝐼_ref=6.7 A; (f) 𝐼_ref=9 A; (g) 𝐼_ref=10.5 A; (h) 𝐼_ref=11.1 A.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)