A 1-mW vibration energy harvesting system for moth flight-control applications

[摘要] (cont.) The latest harvester has a mass of 1.28 g and output power of 1.7 mW into a matched resistive load when the moth vibrates with a +0.37-mm amplitude at 25.8 Hz, resulting in a ±7.82-mm harvester amplitude. A 2-stage AC-DC boost converter with off chip inductors has been designed and fabricated in 0.18 um CMOS technology. SPICE simulation and experiments using equivalent discrete components prove that the converter can achieve 71.68% efficiency. The test experiment of the chip will be conducted later this winter and is not included in the scope of this thesis.

[发布机构] Massachusetts Institute of Technology