Importance

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Abstract

A conducted emissions filter is disclosed. The filter includes a main supply port adapted to provide a power signal to a power supply port, along with a common mode choke coupled between the main supply port and the power supply port with at least one adjustable level of inductance for substantially matching a level of impedance introduced through the power supply port without adversely impacting operation of the filter. The filter further includes at least one filter attenuation element connected across return and supply lines between the at least one common mode choke and the power supply port, at least one return line noise return connected to the return line between the at least one filter attenuation element and the power supply port, and at least one supply line noise return connected to the supply line between the at least one filter attenuation element and the power supply port.

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First Claim