Toroidal transformer with electrostatic shield

Details Toroidal transformer with electrostatic shield Toroidal transformer with electrostatic shield

1982-09-29

1984-07-10

Truhe, J. V.

Inductor devices

With electric and/or magnetic shielding means

336 69, 336 84R, 336229, H01F 1504

Patent

active

044595760

ABSTRACT:
A toroidal transformer is provided with an inner winding electrostatic shield formed by bringing together two conductive annular cups having a generally U-shaped radial cross section. The widths and radii of the sidewalls of these cups are dimensioned such that one of the sidewalls of the first cup forms a conductive interference fit with the corresponding sidewall of the second cup, while the other sidewall of the first cup is separated from the corresponding sidewall of the second cup by a gap, which prevents the shield from becoming a shorted turn. The shield formed by these two cups is placed around a wound core and a second winding is wound over the shield to form a transformer.

REFERENCES:
patent: 3146417 (1964-08-01), Pearson
patent: 3149296 (1964-09-01), Cox
patent: 3244960 (1966-04-01), Stevens et al.
patent: 3292127 (1966-12-01), Dormaier
patent: 3406364 (1968-10-01), Russell et al.
patent: 3458843 (1969-07-01), Lord
patent: 3503126 (1970-03-01), Faller

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