Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2008-04-22
2008-04-22
Le, Dinh T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C307S105000, C333S181000, C363S047000
Reexamination Certificate
active
07362162
ABSTRACT:
The invention is directed to a network filter that comprises at least one phase input and a protective conductor in which each phase input is connected via a filter inductance to a corresponding phase output, in which the input side of each filter inductance is connected to the protective conductor via a filter capacitor, and in which an auxiliary inductance is connected between each filter capacitor and the protective conductor, permitting the inductances in the filter to be kept small, potentially realized by simply slipping a ferrite core over a conductor.
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Brotschi et al, “Störbehebung mit Netzfiltern”,Technische Rundschau, vol. 85, No. 10, Mar. 12, 1993, pp. 62-65.
Karasek Manfred
Paulwitz Christian
Epcos AG
Le Dinh T.
Schiff & Hardin LLP
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