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The final installment of our three-part series explores the isolated DC-DC stage in server power supplies. The design features four LLC modules in an input-series, output-parallel (ISOP) configuration, capable of processing up to 5.5 kW between a 400 VDC bus and a 50 VDC output. This fixed-ratio converter delivers galvanic isolation and high performance for advanced server power architectures.
Bodo’s Power Systems
September 2025
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