A self-sustained energy storage system with an electrostatic automatic switch and a buck converter for triboelectric nanogenerators

Hemin Zhang (1) , Dimitri Galayko (2) , Philippe Basset (1)

1 ESYCOM - Electronique, Systèmes de communication et Microsystèmes
2 CIAN - Circuits Intégrés Numériques et Analogiques

Abstract In this paper, we present for the first time a complete energy harvesting system fo triboelectric nanogenerators (TENGs) that includes as a first stage a half-wave rectifier, and as a second stage an electrostatic automatic switch combined with a buck converter. This simple two-stage system allows to deal with the very high output voltages of TENGs: the system can power a commercial low-voltage output regulator, which cannot be realized by directly charging the storage capacitor only with diode rectifiers. Different from the previous works using dissipating transformers for voltage stepping-down or switches integrated with the TENG for impedance matching, this work demonstrates the properties of high power pumping up, potential size reduction and low power dissipations.

Domaines: Sciences de l'ingénieur [physics]

Hemin Zhang, Dimitri Galayko, Philippe Basset. A self-sustained energy storage system with an electrostatic automatic switch and a buck converter for triboelectric nanogenerators. 18th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, Dec 2018, Daytona Beach, Florida, United States. pp.012016, ⟨10.1088/1742-6596/1407/1/012016⟩. ⟨hal-04031078⟩