Power
Power supply is the most important part of satellite.
Our power module is two-stage multiple switched unit, controlled by microprocessor. Module is designed as fault tolerant.
Module can take control of up to 5 independent outputs (to other satellite modules). To any output can deliver current up to 1 A.
We assume solar cells with 15% efficiency (as minimal). Primary output voltage is 3.3 V and secondary is 5 V. Li-Pol accumulator has capacity above 1000 mAh.
SW of module evaluates measurement of current in particular cells and calculate vector of Sun attitude with respect to satellite.