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Film capacitor and film for a film capacitor
   
Document Number
US Patent 6754065
Issued Date
June 22, 2004
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Abstract
The capacitor according to the invention is wound from at least one film (1) comprising a carrier film (3)--serving as dielectric--with at least one conductor layer (4). It has an internal series circuit. The latter is brought about by the conductor layer (4) applied on the dielectric or the conductor layers being divided into sectors (4.1, 4.2) which are mutually arranged and, if appropriate, connected to one another in such a way that a plurality of series-connected elementary capacitors are formed. It is distinguished essentially by the fact that a current path structure is formed on the sectors, the conductor layer (4) having a high sheet resistance for the purpose of reducing breakdown-governed capacitance losses and the current paths (5, 6) of the current path structure having a significantly reduced sheet resistance for the purpose of reducing the total sheet resistance.
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Number of Claims:
13
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Owner
ABB Research LTD (Zurich,CH)
Published
June 22, 2004
Application Number
10/267,695
Filed
October 10, 2002
US Classification
361/303   361/273
Int'l Classification
H01G   4/30   (20060101)   H01G   4/005   (20060101)   H01G   4/012   (20060101)   H01G   4/33   (20060101)   H01G   4/015   (20060101)  
Assistant Examiner
Parent Case
This application claims priority under 35 U.S.C. .sctn..sctn. 119 and/or 365 to Appln. No. 01811033,8 filed in Europe on Oct. 23, 2001; the entire content of which is hereby incorporated by reference.
Priority Data
Oct 23, 2001 [EP] 01811033
USPTO Field of Search
361/273   361/303   361/304   361/305   361/301.2   361/301.4   361/301.5   361/303   361/304   361/305   361/323  
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