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TOROIDAL TRANSFORMER

Dyco Electronics is a manufacturer of the toroidal transformer,
reactor, inductor, MPP, ferrite, tape wound, iron powder, common mone,
bank wound, pulse transformer, hand wound, hook wound. Design svc

A toroidal transformer is known to be one the highest performing
transformer. A toroidal transformer has the smallest size (by volume
and weight), inferior leakage inductance, and an electromagnetic
interference (EMI) that is much lower. The use of a toroidal
transformer is good for any transformer application that can
accommodate its shape. Although usable, a toroidal transformer are not
always practical for some applications.

The superior magnetic properties of a toroidal transformer does entail
a consequence: the transformer has a memory of what polarity the
primary voltage had prior to when the power was last turned off.
Whenever the voltage has the same polarity when the toroidal
transformer next is turned on, the core will saturate for part of a
half-cycle, and a high in-rush current will flow in the primary of the
toroidal transformer. This in-rush current s larger than the in-rush
current in a conventional transformer, but it is of very short
duration, so it will not affect slow-blow fuses or magnetic overload
protectors with thermal delay characteristic.
A tape core is a magnetic structure, usually found in a toroidal
transformer, whose magnetic core is formed by concentric wraps of a
magnetic alloy with thin insulated film between layers.

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voltage transformer