| 摘要 |
A floating data interface, particularly for integrated circuits, is formed by a Hall-effect arrangement that includes a Hall-voltage-measuring device and a current-carrying coupling loop whose current is controlled by a data source. Because of the low internal resistance of the coupling loop, a plurality of such interfaces can be connected in series, and the individual circuits selected by addresses. Bidirectional data transfer via the floating interface is accomplished by an interrupter stage which interrupts the current flow on the bus line in an interrogation interval during one clock period and forces a predetermined mark/space ratio.
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