Galvanically isolated direct current transducer

Details Galvanically isolated direct current transducer Galvanically isolated direct current transducer

2007-03-27

2010-06-29

Berhane, Adolf (Department: 2838)

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

Reexamination Certificate

active

07746668

ABSTRACT:
The invention relates to a switching device for galvanically isolated 1:1 transmission of a direct current signal, with a transformer comprising a primary coil and a secondary coil, wherein the primary coil is powered with alternating current derived from an input direct current and the current induced in the secondary coil is rectified, and with a correction device for compensating transmission losses. To provide a DC transducer free of auxiliary energy, in which the output current is as close to equaling the input current as possible, it is proposed that the number of turns on the primary coil should be greater than the number of turns on the secondary coil.

REFERENCES:
patent: 5077486 (1991-12-01), Marson et al.
patent: 2006/0209576 (2006-09-01), Yasumura
patent: 23 42 294 (1975-02-01), None
patent: 31 39 963 (1982-06-01), None
patent: 33 11 535 (1984-10-01), None
patent: 20 2004 012 817 (2004-10-01), None
patent: WO 2005053142 (2005-06-01), None

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