Electric lamp and discharge devices: systems – Pulsating or a.c. supply – Transformer in the supply circuit
Patent
1997-07-01
1998-12-08
Pascal, Robert
Electric lamp and discharge devices: systems
Pulsating or a.c. supply
Transformer in the supply circuit
315278, 336182, H05B 4116
Patent
active
058475184
ABSTRACT:
A high voltage transformer comprising a core with a closed magnetic flux path formed by at lease two core parts, at least two bobbins mounted on the side legs of the core, a primary coil and a secondary coil. The bobbin has a hollow through hole to receive the side leg, a low voltage side flange and a high voltage side flange at end portions. The primary coil is inserted in the low voltage side flange, and the secondary coil is regularly and orderly wound on the bobbin between the low voltage side flange and the high voltage side flange. The winding direction of the secondary coil of one of the bobbins is opposite to that of the secondary coil of the other bobbin. The regularly and orderly wound coil and the opposite winding directions decrease the potential difference between the adjacent turns in the second coil and minimize the potential difference between the opposing turns of the secondary coils which are placed parallel to each other. As a result thereof, an internal short-circuiting of a high voltage transformer due to the discharge between the adjacent turns or the opposing turns can be effectively prevented.
REFERENCES:
patent: 3489975 (1970-01-01), D'Entremont
patent: 4187450 (1980-02-01), Chen
patent: 5550437 (1996-08-01), Hopkins et al.
Bettendorf Justin P.
Hitachi Ferrite Electronics Ltd.
Pascal Robert
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