基于压电陶瓷叠堆的压电发电技术研究

Piezoelectric power generation technology based on piezoelectric ceramic stack

利用压电陶瓷叠堆在外力作用下能产生电荷这一效应,对压电材料发电技术进行了理论和实验研究,并将所产生的电能经过电路调整,储存在锂电池组里,用于发电。经理论分析和实验研究发现,将0~60N的外力施加到压电叠堆上,最高可产生6.488V的电压。同时发现,稳压芯片LM2575HVT-12V输出电压为12V、电流为1A时,压电叠堆产生的电能,可通过1F超级电容器和LM2575HVT-12V组成的电路经过12h将12V-12Ah锂电池组充满。

Some theoretic and experiment were researched on the positive piezoelectric effect of piezoelectric ceramic stack under the external force,and the generated electric energy was stored in the lithium battery package after the circuit adjustment for generating electricity.The theoretical analysis and experimental demonstration show that the 0~60Nforce was applied to the piezoelectric stack can produce6.488 Vvoltage.The electric energy generated in piezoelectric stack could be stored in 12V-12 Ah lithium battery package within 12 hby the circuit of 1Fultracapacitor and LM2575HVT-12 Vregulator when the output voltage and current of LM2575HVT-12 V was 12 Vand 1A,respectively.