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:
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Mass: 4.5kg
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Volume: 5.6 liters
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Solar power input: 900W
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SAR principle: MPPT
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Efficiency >94%
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Output: 28V unregulated bus 30A max.
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Output power 450W
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Battery charge control
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majority voter
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Battery disconnect switch