The amorphous noise suppression
devices, AMOBEADS® and SPIKE KILLERS®, suppress rapid changes in
current which could otherwise lead to electrical noise in many circuits.
Unlike other noise reduction methods which absorb noise after it is created,
amorphous noise suppression devices suppress the source of the noise. Because
of their square-shaped magnetic hysteresis behavior, amorphous noise suppression
devices have a very large inductance when the current crosses zero (i.e.
changes sign). This large inductance effectively blocks any further current
changes. During normal current flow amorphous noise suppression devices
have very low inductance. The reverse recovery phenomenon in semiconductor
switching devices occurs when the current switches off. This phenomenon
can lead to noise in the circuit. Amorphous noise suppression devices effectively
and efficiently decrease the noise caused by the reverse recovery current.
AMOBEADS® are structurally
optimized for use with single-turn windings. They are intended for applications
where they are simply slipped over the leads of the components to be quieted.
SPIKE KILLERS® are named for
their effective suppression of current spikes in switching circuits. "SPIKE
KILLERS" are small saturable cores which are usually wire wound. "SPIKE
KILLERS" provide excellent noise suppression and protection of semiconductors.
Please feel free
to contact us to discuss your application and to receive detailed
information on the product of interest. For further information
please contact the Advanced
Materials Division of Toshiba America Electronic Components,
Inc. For other product details, please visit our affiliate Toshiba
Materials Co., Ltd.
