Abstract
A piezoelectric element generate voltage by piezoelectrical effect The piezoelectrical effect converts load into an electric charge. In this study, we invent power generator using the piezoelectric element (PZT). PZT is attached to the round fan. When the handle of the round fan is swung, the equipment with PZT is subjected to the repeating load Thus, the round fan is considered as a power genaator. We made the experimental device which modeled the handle of the round fan. We measure the output voltage and the electric power with various values of electrical resistance. The relationships between the output voltage, the electric power and the load resistance can be given.