Inductor devices – With electric and/or magnetic shielding means
Patent
1986-11-17
1988-05-31
Kozma, Thomas J.
Inductor devices
With electric and/or magnetic shielding means
336223, 336225, H01F 1504, H01F 2728
Patent
active
047484306
ABSTRACT:
The transformer comprises a primary coil comprising a conductive strip wound around an insulating coil base comprising a central part, two parts located at the ends of the central part with a roughly rectangular shape, the bigger sides of which extend along a second and a third direction which are mutually opposite. The length of the central part, measured along the initial direction, is determined so that the two ends have the directions of their bigger sides colinear in pairs when the central part is wound around the coil base. The two angles, formed at the points where the edges of the parts located at the ends intersect the edges adjacent to the bigger sides of the central part, are truncated to prevent the overlapping of the two ends when the central part is wound around the coil base.
REFERENCES:
patent: 2081979 (1937-06-01), Bentley
patent: 2860312 (1958-11-01), Krepps
patent: 3312919 (1967-04-01), Ross
patent: 3360754 (1967-12-01), Gerdiman
patent: 3826967 (1974-07-01), Wilkinson
patent: 4176335 (1979-11-01), Charpentier
patent: 4236133 (1980-11-01), Seiersen
IBM Technical Disclosure Bulletin, "Flat Winding Transformer," J. K. Radcliffe, vol. 22, No. 9, Feb. 1980, pp. 4009-4012, 336-223.
Kozma Thomas J.
Thomson-CGR
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