⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一种单电感AC-DC压电能量收集器/电池充电器集成电路，能够将微小的压电交流信号（±0.35-1.2V）转换为稳定的直流电压（2.7-4.5V）给电池充电，解决了微系统能量受限的问题，并实现了准无损的LC能量传输和低损耗整流。
Microscale integration constrains energy and the lifetime microsystems like wireless sensors and biomedical implants can achieve to impractical levels. Harnessing ambient vibration energy from a small piezoelectric transducer, however, can viably keep an otherwise exhaustible battery charged. The problem is rectifying unpredictably small ac signals (which are prevalent in small volumes and with weak vibrations [1]) whose peak voltages fall below the rectified output level targeted, requires low-loss [2]–[3], no-threshold rectifiers. To fulfill these necessities, quasi-lossless LC energy-transfer networks that precede [4] or follow [5] the rectifier can extract all the energy stored in the piezoelectric capacitance and therefore overcome the basic threshold-voltage limitation, except the rectifier and its controller’s headroom and quiescent current nonetheless limit the input voltage range of the system and dissipate power. The harvester-charger presented here, however, whose power-trai
Dongwon Kwon, Gabriel Alfonso Rincon-Mora
Georgia Institute of Technology, Atlanta, GA