The NanoPower P31u from GOMspace is used as the Electrical Power System on-board FUNcube-1. The NanoPower unit integrates the three elements needed for a compact EPS solution – Solar panel input with Maximum Power Point Tracking, energy storage and six user-controlled output switches, which all incorporate latching current limiters. All of this functionality is integrated into one single board. The power supply is the heart of a satellite. It is therefore very important not to compromise on quality and reliability of it. The NanoPower is designed as fully analogue solution – but with an microcontroller for digital interfacing and the maximum power point tracking.
The GOMspace NanoPower webpage can be found here http://gomspace.com/index.php?p=products-p31u