3- and 4-terminal capacitors with "Faraday-shielded" connections

Details 3- and 4-terminal capacitors with "Faraday-shielded" connections 3- and 4-terminal capacitors with "Faraday-shielded" connections

1997-06-16

1999-06-08

Kincaid, Kristine

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

361307, 3613083, 361309, 3613063, H01G 4228, H01G 4232

Patent

active

059108797

ABSTRACT:
A tubular capacitor made of metallized film may be drilled through to its hollow center during its manufacture, and any resulting short circuits may be cleared by the application of electrical energy. Third and fourth leads may be attached to end caps on their inside surface, and the leads can be brought out through the through hole. The end caps may have a thickness that is large compared to the penetration depth at a frequency of interest. The capacitor may be used as a four terminal capacitor, for instance, in a switched mode power supply filter, and it will have superior rejection of high frequency AC noise. The two internally connected leads may also be used as a low inductance alternative connection for a two terminal capacitor.

REFERENCES:
patent: 3097330 (1963-07-01), Fischer
patent: 4148003 (1979-04-01), Colburn et al.
patent: 5544002 (1996-08-01), Iwaya et al.

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