Chokes for power conversion

Almag offer

PFC chokes, emc chokes and smpsu output chokes of outstanding quality and value, based on over twenty years experience of magnetic core properties and capabilities.

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Standard ranges

Almag offer standard ranges of power chokes, all with well defined performance characteristics, based on our unrivalled application and design experience.
Details are now loaded into databases, so we can select a short list for a customer’s specific requirement or send a hard copy listing.


Power chokes

High frequency ranges
High storage ranges
Low cost ranges
Switching regulator chokes

using sendust cores
using Hi-Flux cores
on iron powder cores
iron powder or sendust

EMC chokes

Common-mode chokes
Common-mode chokes
Series-mode chokes

single-phase
three-phase
single-phase


Custom types

We work with our customers to find the optimum balance between performance and cost for toroidal and bobbin wound chokes and inductors.

Active pfc chokes

On powder toroids or
ferrite E-cores

low cost designs for up
to 150k Hz, using the
latest core materials.

SMPSU output chokes

On powder toroids or
ferrite E-cores

wire or foil wound,
using the latest core
materials for up to 250kHz.

Resonant chokes

On ferrite E-cores or
fabricated assemblies

litz wound, with multiple
airgaps to reduce
proximity effect heating,
are a speciality.

EMC chokes

Common-mode and
series-mode


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