PSPICE analyses of vibration energy harvester systems with multiple piezoelectric components

In this letter, a PSPICE based simulation is conducted to analyze the system of a vibration energy harvester with multiple piezoelectric components and the basic energy storage circuit. By the simulation, the optimal capacitance of the storage capacitor is determined to obtain a maximum energy storage power, and the effect of circuit parameters of the piezoelectric components on the stored energy is clarified.