Frequency Power Transformers
Charging/Sync USB Cables
Transformers, Chokes and Power Inductors
and inductors are important parts of any power supply
circuit design. Transformers are a passive device which
transforms alternative (AC) electrical energy from one
circuit into another through electonmagnetic induciton.
In general, transformers transfer all energy instantaneously
form one winding to another while storing no or little
energy in the process. Conversely, a power inductor
is used as an energy storage device. It accumulates
energy in the magnetic field as current flows though
it and then transfers all or portion of this energy
into anotehr circuit during the alternate part of the
switching cycle. Power supply inductors also are designed
to filter high frequency ripple in which case they are
inductor consists of wire wound around a core of ferrite
material that includes an air gap. A subset within the
broad inductor category, power inductors operate as
energy-storage devices. They store energy in a magnetic
field during the power supply¡¦s switching-cycle on
time and deliver that energy to the load during the
off time. To understand power loss in inductors, you
must first understand the basic parameters associated
with inductors. These
include magnetomotive force F(t), magnetic-field strength
Inductors dissipate power in the core and in the windings.
Although exact calculations of these losses can be complex
and difficult, they can be readily estimated using data
sheet parameters available from magnetic component specifications.
manufacturers a complete line of power magnetics for
voltage conversion applications in a broad range options.
These include through hole to surface mount, unshielded
Drum Core, Shielded Drum Core, Round Wire Coils, Toroid,
Flat Coil, Power Bead, and Planar.
Drawings and Product Sheets
Power Inductor Specifications
and Ordering Information
Power Transformer Drawings
Power Charging/Sync USB
Power Charging Banks
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