White paper - Using powder materials to replace air-gaps for fringing flux reduction

White paper – Using powder materials to replace air-gaps for fringing flux reduction Amorphous or nanocrystalline cores are the preferred choice for designers when building smaller power inductors, as the materials offer a much higher possible saturation flux density compared with ferrites. However, to store a high amount of energy, power inductors made from these materials require a relatively large air-gap.

This isn’t a complete solution as fringing flux entering the space around the air-gap, due to forced eddy current losses, causes further design issues. Using multiple small air-gaps can resolve this, but it can be costly, as additional manufacturing efforts are required.

This paper explores an alternative solution to large or multiple air-gaps in power-inductors – lower permeability powder materials.

Custom shapes and sizes, limited only by the engineer’s imagination

Micrometals and Acal BFi. Micrometals are one of the world leaders in the production of high quality, low-cost iron-powder cores - offering an unrivalled customisation service.

read more

Finding the solution to challenging high-frequency requirements with established materials

Discover how your magnetic component designs and applications can benefit from carbonyl iron powder - Using a tried-and-tested material from a different sector.

read more

We put the power in your industrial application

Our portfolio covers every possible power supply scenario. From creating your own bespoke power supply with SynQor bricks, to flexible, user-configurable modular products from Excelsys, internal open-frame designs from SL Power to cost-effective, plug-and-play external supplies from Cincon, we put the power in your industrial application.

read more