一种用于压电能量采集的无整流器同步电荷提取与反转接口电路

A novel rectifier-less synchronous electric charge extraction and inversion (ReL-SECEI) interface circuit for Piezoelectric energy harvesters is proposed in this article. At the peak voltages of the Piezoelectric Transducer (PZT), a portion of electric charges is inverted on the clamped capacitance Cp, so that the PZT is automatically regulated at a higher output voltage state to improve extracted...