Electric power conversion systems – Current conversion – With means to introduce or eliminate frequency components
Reexamination Certificate
2006-05-30
2006-05-30
Sterrett, Jeffrey (Department: 2838)
Electric power conversion systems
Current conversion
With means to introduce or eliminate frequency components
C363S053000, C361S016000
Reexamination Certificate
active
07054173
ABSTRACT:
A circuit that includes a filter and a DC bus is provided that reduces the potential for failure of a second capacitor of the filter in the event a first capacitor shorts. The filter is electrically connected across the DC bus and includes serially connected capacitors and a capacitor fuse electrically connected in series with the capacitors. The capacitor fuse is adapted to open in the event a first capacitor of the series shorts in order to prevent failure of a second capacitor of the series. In one embodiment of the invention, a static power converter includes a pair of serially connected capacitors having a DC bus fuse serially connected therewith. In another embodiment of the invention, a filter connected across a DC bus includes a plurality of capacitor legs that each include a capacitor fuse serially connected to a plurality of serially connected capacitors.
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Rayner Mark
Ta Benjamin A.
Banner & Witcoff , Ltd.
Sterrett Jeffrey
Toshiba International Corporation
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