Marine and Offshore Magnetics: Salt Fog, Condensation and Vibration
Encapsulation versus VPI, why IP rating does not protect the component, and the tests that demonstrate fitness.
400 Hz Transformer Design: Aircraft Ground Power and Avionics
Why 400 Hz shifts the loss balance to the core, lamination and winding choices, and the weight trade in airborne units.
Laminated Core Step-Lap Stacking: Building Factor and Loss
Stacking methods compared, why the joint dominates building factor, and when step-lap pays for itself.
High-Altitude Derating for Magnetic Components: Cooling and Clearance
Two independent effects, planning multipliers, and the RFQ fields that keep a derated rating honest.
Battery Charger Magnetics: Sizing Against the CC-CV Profile
Topologies, why the thermally limiting point is rarely full load, and the isolation and thermal fields to specify.
Insulation Resistance vs Hipot: What Each Test Actually Proves
The two tests compared, why IR catches what hipot misses, and the test conditions that make results comparable.
PoE Isolation Magnetics: 802.3bt Design and Test Points
Isolation in a millimetre footprint, insertion and return loss controls, and the derating curve buyers should demand.
Impregnation: Vacuum Pressure Impregnation vs Dip and Vacuum Dip
Penetration, thermal conductivity, PD resistance and cure control compared across the three process levels.
Measuring Core Loss at Your Actual Operating Point
Four measurement methods, the waveform and temperature corrections, and how to set up a usable B-H measurement.
Magnetics for Electrolyzer Power Supplies: High Current, Low Ripple
Architectures, high-current construction, thermal cycling from renewable profiles, and what to specify for stack rectifiers.