Design of piezoelectric energy harvesting circuit based on synchronous inversion and charge extraction
An efficient self-powered synchronous inversion and charge extraction (efficient SP-SICE )circuit is presented,This circuit has characteristics of no-need for a rectifier bridge and the self-powered ability.The circuit adopts a pull-down resistor design to improve the flip voltage doubling structure,reduce the energy consumption problem caused by inductive reactance,and improve the energy harvesting efficiency when the voltage is doubled,Experimental results show that the average stable output power of the ESP-SICE circuit is 2.76 times that of SEH and 1.44 times that of the SICE circuit.
energy harvestingpiezoelectric cantilever beamself-poweredmultiple piezoelectric
万方数据
维普
