Arc limiting device using the skin effect in ferro-magnetic mate

Details Arc limiting device using the skin effect in ferro-magnetic mate Arc limiting device using the skin effect in ferro-magnetic mate

1998-02-03

1999-11-02

Porta, David P.

X-ray or gamma ray systems or devices

Electronic circuit

X-ray source power supply

378107, 378109, H05G 120

Patent

active

059784466

ABSTRACT:
A high voltage power supply includes a high voltage high frequency generator (10) having outputs (12, 14). An arc limiting device (20) is connected in series to the outputs (12, 14) of the generator (10). The arc limiting device (20) includes two coils (22, 24) of a wound length of wire (50) that exhibit a skin effect. The skin effect forces higher frequency current components to flow at a surface of the wire (50) through a limited skin layer portion (62) of a cross section of the wire (50). In one preferred embodiment, the arc limiting device (20) is connected via high voltage cables (32, 34) with an x-ray tube (40). Suitable material for the wire (50) includes those materials with high permeability to resistivity ratios, for example iron, purified iron, 78 permalloy, 4-97 permalloy, mu metal, or supermalloy.

REFERENCES:
patent: 4262209 (1981-04-01), Berner
patent: 4775992 (1988-10-01), Resnick et al.
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patent: 5347571 (1994-09-01), Furbee et al.
patent: 5406235 (1995-04-01), Hayashi
patent: 5602897 (1997-02-01), Kociecki et al.

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