Telecommunication system with means to maintain unchanged in...

H - Electricity – 04 – L

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H04L 5/14 (2006.01) H04L 12/28 (2006.01) H04L 12/40 (2006.01) H04L 25/08 (2006.01)

Patent

CA 1276252

ABSTRACT: A telecommunication system comprising a bus-conductor and telecommunication stations connected to this bus conductor via transformers. A telecommunication system comprising a 2-wire bus conductor to which terminals have been connected via a transformer, in which communication takes place via voltage pulses Vp on the bus. Each voltage pulse Vp causes a magnetizing current im to be developed in the spurious self-inductance of each connected tran s- former. This current causes a faulty voltage to arise after termination of the pulse, entailing faulty information transfer. The invention offers a system in which a compensating current ic is generated in the connec- ted transformers to combat this faulty voltage, so that at the instants of pulse termination the total magnetization of all transformers remains unchanged. Figure 5.

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