Directional coupling transformer for bi-directional full duplex data bus
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United States of America Patent
Stats
-
Nov 17, 1987
Grant Date -
N/A
app pub date -
Jun 10, 1986
filing date -
Jun 10, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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