Application Notes
Three-phase resonant converters and planar magnetic integration
Topologies, current-balancing control and 1 MHz planar magnetics: the route to ultra-high power density in DC-DC converters.
Design, calculation and simulation of planar transformers
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…
Industrial Power Converter Selection Guide: 5 Critical Parameters
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.
What is an Electronic Fuse (eFuse) and Why Is It Replacing Conventional Fuses in Industrial Panels?
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.
Thermal Design in Power Electronics
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.
Barcelona, the epicentre of the AI energy revolution.
Opinion · AI & Energy Barcelona, the epicentre of the AI energy revolution. Where is Spanish industry? A view from the OCP EMEA Summit 2026 — and a message to the Spanish industrial base of pumps, heat exchangers, valves and fluid…
Premium SA at OCP EMEA Summit 2026 Barcelona: Industrial Discipline for the 800 V DC Era
The Technical Inflection: From 48 V to 800 V DC For fifteen years, the server rack lived comfortably within 48 V bus architectures. OCP Open Rack v3 (ORv3) consolidated that standard and allowed the industry to scale deployments to 80–100 kW per rack.
Multilevel Inverters: NPC, FC, CHB and the Road to RDC-ML
From conventional two-level to neutral-point clamped, flying capacitor, cascaded H-bridge and reduced device count topologies — architectural synthesis for traction, grids and renewables
Redundant DC/DC Converter 3600W
The CKR-3600 by Premium PSU is a 3,600W modular redundant DC/DC converter with hot-swap modules, CAN/Modbus control and scalability up to 14.4 kW.
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