Active compensation filter

Details Active compensation filter Active compensation filter

2008-05-08

2009-11-24

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

Unwanted signal suppression

C327S552000, C330S303000

Reexamination Certificate

active

07622985

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.

REFERENCES:
patent: 3445781 (1969-05-01), Wolcott
patent: 3628057 (1971-12-01), Mueller
patent: 4253070 (1981-02-01), Carlsen, II
patent: 4667279 (1987-05-01), Maier
patent: 5668464 (1997-09-01), Krein et al.
patent: 6566947 (2003-05-01), Gorcea
patent: 2002/0121930 (2002-09-01), Gorcea
patent: 2009/0115564 (2009-05-01), Minteer
patent: 0 877 467 (1998-11-01), None

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