Why unit price no longer decides critical power electronics: Physics-of-Failure, the four-gate DFR process, RAMS metrics and PHM behind Premium SA's 40-year reliability commitment.

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Analysis of the rail market and the four technology vectors — SiC, MMC, distributed architectures and bidirectionality — reshaping onboard power electronics, with the EN 50155 regulatory stack and Premium PSU's DFR process. Full portfolio at InnoTrans 2026.

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Topologies, current-balancing control and 1 MHz planar magnetics: the route to ultra-high power density in DC-DC converters.

The post Three-phase resonant converters and planar magnetic integration appeared first on Premium PSU.

PREMIUM SA · ENGINEERING INSIGHT · HIGH-FREQUENCY MAGNETICS · 2026 Loss physics, winding structures, parasitics, insulation standards and the open-source software ecosystem for high-frequency magnetics.   Executive summary The drive for higher power density, efficiencies above 98 % and ultra-thin profiles has pushed the transition from the conventional wire-wound transformer to the planar transformer: photolithographically […]

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Why the 800 VDC architecture, the sidecar and liquid cooling are turning AI data centers into industrial power plants — figures corrected to source.

The post The 800 VDC revolution: the energy engine behind AI appeared first on Premium PSU.

Huawei swaps Moore's geometric scaling for temporal scaling (the τ Law, LogicFolding). But stacking more compute into less volume concentrates power and heat, shifting the performance ceiling from the lithographer to the power engineer. High voltage near the chip, GaN/SiC and power-thermal co-design: the new frontier, and Premium's space.

The post White paper – From geometry to the watt appeared first on Premium PSU.

5 critical parameters most engineers overlook when selecting an industrial power converter — and the most common sizing errors. Practical guide based on 900+ designs manufactured in Barcelona, Spain.

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Visit us at InnoTrans 2026, Hall 17 Stand 425. Our team will be available throughout the four days to discuss railway power solutions, onboard converters and DIN rail systems for demanding environments.

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The electronic fuse (eFuse) detects overcurrents in microseconds, interrupts the circuit without blowing, and automatically resets. Unlike a conventional fuse, it indicates which channel has failed via an LED or digital signal, enables selective channel-by-channel protection, and eliminates the need for spare part stock.A solution that becomes more cost-effective than traditional fuses in installations with more than 3–4 faults per year, despite its higher unit cost.

The post What is an Electronic Fuse (eFuse) and Why Is It Replacing Conventional Fuses in Industrial Panels? appeared first on Premium PSU.

Thermal failure accounts for over half of all premature faults in power electronics. This article covers the fundamentals of modern thermal design — thermal budget, Arrhenius law, thermo-mechanical fatigue and cooling technology hierarchy — alongside the concurrent DFR methodology that Premium SA applies from the concept phase in SiC/GaN converters for railway, defence and industrial applications.

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