A Solar Cell Powered Adaptive Charging Circuit for CMOS Integrated Micro Fuel Cells

15th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Moranz, C.^1 ; Ghafarian, M.H.^1 ; Ylli, K.^2 ; Manoli, Y.^1,2

University of Freiburg - IMTEK, Freiburg, Germany^1

Hahn-Schickard, Villingen-Schwenningen, Germany^2

关键词: Charging current;    Charging process;    Energy-autonomous systems;    Fully integrated;    Integrated hydrogen;    Integrated sensors;    Interface circuits;    Powering systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/660/1/012133/pdf
DOI  :  10.1088/1742-6596/660/1/012133

来源: IOP

【 摘 要 】

This paper presents an autonomous interface circuit which uses solar cells to automatically recharge chip integrated micro fuel cell accumulator arrays. These accumulators comprise a fuel cell for powering systems and a hydrolysis cell for charging the integrated hydrogen storage. The charging current is continuously monitored and the interface circuit automatically maximizes and controls the charging current. The solar cells powering the charging process are projected to be part of the chip package. The presented system, in combination with a previously developed voltage regulator and integrated sensors or actuators enables the implementation of fully integrated energy autonomous systems.