The Power Conversion Unit (PCU) for a small satellite platform is single-failure-tolerant and based on GaN technology for power semiconductors. The solar array regulator stages operate with buck-boost regulators (B2R). TM/TC control is implemented via a CAN bus interface.
Details:
-
Mass: 4.5kg
-
Volume: 5.6 liters
-
Solar power input: 900W
-
SAR principle: MPPT
-
Efficiency >94%
-
Output: 28V unregulated bus 30A max.
-
Output power 450W
-
Battery charge control
-
majority voter
-
Battery disconnect switch
