GaN DC-DC converter for space
Frontgrade Technologies has successfully qualified a Gallium Nitride (GaN)-based DC-DC converter and complementary electromagnetic interference (EMI) filter for space operation.
The 28V GaN DC-DC converter is aimed at space missions from Low Earth Orbit (LEO) through Geostationary Earth Orbit (GEO).
The tests were performed in accordance with the Defense Logistics Agency’s MIL-STD-883 Test Methods which included External Visual (2009), Internal Visual & Mechanical (2014), Temperature Cycling (1010), Constant Acceleration (2001), Random Vibration (2026), End-Point Electrical (in accordance with device specification), and Life Test (2009). Frontgrade is pursuing MIL-PRF-38534 Class L qualification with the Defense Logistics Agency, and QML approval is currently pending.
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The isolated, single-stage 510xxx DC-DC converter uses GaN FETs to provide point of load power from the satellite bus. The first such single stage GaN converter for space applications, the SCD51028xx, was launched in 2021.
“Our GaN converter has undergone rigorous testing, demonstrating its reliability in addressing the critical power management needs of next-generation satellites,” said Lorne Graves, Chief Technology Officer at Frontgrade Technologies, formerly CAES Space Systems. “With flight-ready modules and evaluation test boards, our customers can accelerate their development cycles to achieve on-time mission success.”
Flight and engineering modules and evaluation test boards are now available for development, testing, and deployment in mission-critical spacecraft systems.
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