Transformer

Details Transformer Transformer

1988-09-01

1992-03-03

Wong, Peter S.

Electricity: power supply or regulation systems

Including a transformer or an inductor

With compensation

323359, 336 69, H01F 2740

Patent

active

050936131

ABSTRACT:
A transformer with interference suppression includes a primary winding (1) with a first primary coil (27), one end of which is connected to a primary reference point (19), and also includes a second primary coil (39). The transformer has a secondary winding (3) with a secondary coil (33), one end of which is conductively connected to a secondary reference point (21). All of said coils (27, 39, 33) are solenoid coils which are concentrically arranged on a coil former (5) with intermediate electrical insulating means (29, 31; 29, 37) so that the first primary coil (27), across which the voltage drop amounts to U.sub.1p, is capacitively coupled to the secondary coil (33) across which the voltage drop amounts to U.sub.1s. The capacitance between these two coils has the value C.sub.1. The second primary coil (39), across which the voltage drop amounts to U.sub.2p, is capacitively coupled to a secondary coil (33) across which the voltage drop amounts to U.sub.2s. The capacitance between these two coils has the value C.sub.2. In order to prevent a disturbing voltage from occurring between the primary reference point (19) and the secondary reference point (21), the following condition is satisfied:

REFERENCES:
patent: 1702771 (1929-02-01), Grozneveld
patent: 3210706 (1965-10-01), Book
patent: 3299384 (1967-01-01), Lee
patent: 3683271 (1972-08-01), Kobayashi
patent: 3688232 (1972-08-01), Szatmari
patent: 3886434 (1975-05-01), Schreiner
patent: 4089049 (1978-05-01), Suzuki et al.
patent: 4581573 (1986-04-01), Dobsa et al.
patent: 4639663 (1987-01-01), Ueno et al.

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