A 12 mV start-up converter using piezoelectric transformer for energy harvesting applications

16th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Martinez, T.^1 ; Pillonnet, G.^2 ; Costa, F.^1,3

Laboratoire SATIE, ENS Paris-Saclay, France^1

CEA-LETI, Université Grenoble Alpes, Grenoble, France^2

Université Paris-Est, Créteil, France^3

关键词: Input voltages;    MOS-FET;    Normally on;    Off-the-shelf components;    Output voltages;    Piezoelectric transformers;    Rosen type;    Up-converter;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/773/1/012028/pdf
DOI  :  10.1088/1742-6596/773/1/012028

来源: IOP

【 摘 要 】

This paper presents a novel topology of start-up converter for sub 100 mV thermal energy harvesting based on an Armstrong oscillator topology using a piezoelectric transformer (PT) and a normally-on MOSFET. Based on a Rosen-type PT and off-the-shelf components, the proposed startup topology begins to oscillate at 12 mV input voltage corresponding to a temperature gradient of 2°C and achieves 1 V output voltage with only 18 mV input voltage applied to the harvester.