Active compensation filter
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United States of America Patent
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Nov 24, 2009
Grant Date -
Nov 13, 2008
app pub date -
May 8, 2008
filing date -
May 10, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
An active compensation filter for the application in the electric power supply in a land vehicle, which comprises a high-pass filter which is to be coupled with a supply voltage line which carries a supply voltage, in order to detect frequency and amplitude of interference voltage components of the supply voltage. A signal amplifier which is connected in series with the high-pass filter amplifies the detected interference voltage components and supplies them to a coupling element as output signals, which is connected in series with the signal amplifier and comprises a primary side and a secondary side. The primary side is fed with the output signals of the signal amplifier and the secondary side is looped into the supply voltage line.
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