flyback_transformer_low_voltage_transformers_power_transformer
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Coupling is a measure of the amount of interconnecting flux lines
between two windings of a magnetic component or two magnetic
components. For a current transformer the designer maximizes coupling
between the windings by placing the windings on the same core and
through various winding techniques. For individual inductors a
magnetic shield is often placed over the windings to prevent flux lines
from radiating from the winding and interfering with other components.
A faraday shield is used to minimize coupling capacitance and common
mode noise on the output a metal shield is placed between the primary
and secondary windings of a current transformer. The shield is
electrically connected to ground potential.
Alternating current (AC) found in a current transformer is measured in
hertz (hz), and it occurs when charge carriers in a conductor
periodically reverse their direction of movement. An AC waveform can
be sinusoidal, square, or sawtooth-shaped. Some AC waveforms are
irregular or complicated.
Magnetizing Current represents the no-load current in the current
transformer primary winding that furnishes the magnetomotive force
(mmf) required to overcome the cores magnetic reluctance and magnetize
the core.
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