Directional coupling transformer for bi-directional full duplex

Details Directional coupling transformer for bi-directional full duplex Directional coupling transformer for bi-directional full duplex

1986-06-10

1987-11-17

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Having branched circuits

333119, 379378, H03H 748

Patent

active

047076739

ABSTRACT:
A directional coupler transformer insensitive to data bus termination failures, includes a ferrite toroid core about which first through fourth windings are wound, the first and second windings being for connection in series with each conductor, respectively, of a data bus for sensing or generating data signal current, the third winding being connected in parallel with the data bus conductors for sensing or generating data signal voltage, and a fourth winding inductively coupled to the other three windings for either coupling data signals traveling in one direction from the data bus to a receiving unit, or coupling data signals from a transmitting unit to the data bus for transmission along the data bus in a given direction.

REFERENCES:
patent: 2734169 (1956-02-01), Douma
patent: 4274051 (1981-06-01), Condon
patent: 4467293 (1984-08-01), Apel
patent: 4555681 (1985-11-01), Dominick et al.

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