Nonlinear Dynamics and Power Generation on a New Bistable Piezoelectric-Electromagnetic Energy Harvester

Figure 35

Relation of the voltage-frequency of the system is given when turns of coils are selected as 50, 100, 150, and 200, respectively: (a) coil turns are 50 and 100, respectively; (b) coil turns are 100 and 150, respectively; (c) coil turns are 150 and 200, respectively.

(a)

(b)

(c)