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

[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.

[发布机构] University of Freiburg - IMTEK, Freiburg, Germany^1;Hahn-Schickard, Villingen-Schwenningen, Germany^2

[效力级别] 能源学

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