Two self-powered energy harvesting interfaces based on the optimized synchronous electric charge extraction technique

13th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Wu, Yipeng^1 ; Badel, Adrien^1 ; Formosa, Fabien^1 ; Liu, Weiqun^1 ; Agbossou, Amen^2

Laboratoire SYMME, Université de Savoie, 74944 Annecy-le-Vieux, France^1

Laboratoire LOCIE, Université de Savoie, 73376 Le Bourget du Lac, France^2

关键词: Ambient vibrations;    Electronic switches;    Experimental testing;    Mechanical switch;    Peak-detector circuits;    Standalone systems;    Synchronous switches;    Vibration energy harvesting;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/476/1/012098/pdf
DOI  :  10.1088/1742-6596/476/1/012098

来源: IOP

【 摘 要 】

Optimized synchronous electric charge extraction (OSECE) interface is a load weakly-dependant circuit, which is a favorable characteristic for piezoelectric wideband vibration energy harvesting. However, it introduces synchronous switches that need to be self-powered in a stand-alone system. This paper presents the design and experimental testing of two self-powered approaches for the OSECE technique. One is made of electronic switches driven by analog peak detector circuits; the other uses mechanical switches directly controlled by the ambient vibrations. Finally, advantages and drawbacks of the two approaches will be compared and discussed.