WCM420 Series: How Do You Choose a High-Power Switch-Mode Transformer for Up to 5 kW? Published by West Coast Magnetics, July 2026, based on our 2024 WCM420 product sheet (available for download below); content reviewed and confirmed current as of publication. The WCM420 series of switch-mode transformer core-and-bobbin sets delivers up to 5 kW in […]
How Do You Choose a Ferrite Core Material for an SMPS Transformer? Published by West Coast Magnetics, July 2026, based on our APEC 2022 presentation on ferrite core design for SMPS transformers and our WCM-F-series core-material datasheets; content reviewed and confirmed current as of publication. For a switch-mode power supply transformer the core material is […]
How Do You Model Core Loss for Switching (Nonsinusoidal) Waveforms? Published by West Coast Magnetics, July 2026, based on “Improved Calculation of Core Loss with Nonsinusoidal Waveforms” by Jieli Li, Tarek Abdallah, and Charles R. Sullivan of Dartmouth College (IEEE IAS 2001), which we host (available for download below); content reviewed and confirmed current as […]
What Are WCM’s SMPS Transformer Design Kits (WCM410 and WCM420)? Published by West Coast Magnetics, July 2026, based on our design-kit product line and 2021 product announcement; content reviewed and confirmed current as of publication. WCM’s design kits are matched sets of ferrite E-cores and bobbins from its WCM410 and WCM420 SMPS transformer series, sold […]
How Do You Minimize Losses in High-Power SMPS Magnetics? Published by West Coast Magnetics, July 2026, based on our technical paper on designing high-power, high-frequency magnetics (available for download below); content reviewed and confirmed current as of publication. In high-power SMPS magnetics, loss minimization drives the whole design because the magnetics can quickly become the […]
How Does WCM Simulate SMPS Magnetics with Finite Element Modeling? Published by West Coast Magnetics, July 2026, based on our 2019 APEC presentation on finite element modeling of switch-mode power supply magnetics (available for download below); content reviewed and confirmed current as of publication. West Coast Magnetics uses finite element modeling (FEM) in ANSYS Maxwell […]
How Do You Choose a Core for a High-Power SMPS Transformer? Published by West Coast Magnetics, July 2026, based on our technical paper on designing high-power, high-frequency magnetics (available for download below); content reviewed and confirmed current as of publication. At high power the core problem is not a simple scale-up: required core volume rises […]
Which Winding Should You Use in an SMPS Inductor? Foil, Litz, or Solid Wire Published by West Coast Magnetics, July 2026, based on our 2018 APEC presentation on foil windings for SMPS inductors and transformers (available for download below); content reviewed and confirmed current as of publication. The lowest-loss winding for a gapped SMPS inductor […]
How Much Smaller Can SMPS Magnetics Get? The Drivers of Power Density Published by West Coast Magnetics, July 2026, based on our 2014 presentation on magnetics power density by CEO Weyman Lundquist (available for download below); content reviewed and confirmed current as of publication. The power density of an SMPS transformer or inductor, its power […]
How Do You Make a Magnetic Component Smaller, Lighter, and More Efficient? Published by West Coast Magnetics, July 2026, based on a magnetics-design chalk talk by Prof. Charles Sullivan of Dartmouth (available for download below); content reviewed and confirmed current as of publication. You make a transformer or inductor smaller, lighter, and more efficient by […]
How Do You Design Transformers and Inductors for Medium and High Power? Published by West Coast Magnetics, July 2026, based on our 2018 APEC presentation on medium- and high-power magnetics design (available for download below); content reviewed and confirmed current as of publication. Designing transformers and inductors for medium and high power requires engineering for […]
SMPS Transformer Design Guide: Core Selection, Isolation, and Thermal Design Published by West Coast Magnetics, June 2026, based on our 2010 switch-mode transformer application note (available for download below); content reviewed and confirmed current as of publication. An SMPS transformer is designed in a fixed order: choose the core and bobbin geometry, pick the mounting […]
Contact Us
Recent Comments