一种用于低压压电换能器阵列环境能量收集的无整流器AC-DC接口电路

This paper presents a rectifier-less ac-dc energy harvesting circuit capable of harvesting energy from multiple low-voltage piezoelectric transducers (PETs). Synchronous electric charge extraction technique, with bidirectional switches, is adopted to achieve rectifier-less ac-dc direct conversion. The inductor is engaged only during the voltage peak of the PET output for a short period of time and...