Patent ID: 6917226

Claim:
A transformer coupling arrangement comprising: a transformer having primary and secondary windings; a plurality of drivers each having a signal input, an output coupled to the primary winding of the transformer, and an output enable (OE) input, each driver being responsive to a respective OE signal supplied to its OE input to couple a transmit signal, supplied to the inputs of the plurality of drivers, to the output of the respective driver and hence to the primary winding of the transformer; and a rectifier arrangement coupled to the secondary winding for producing a dc output in response to the transmit signal coupled to the primary winding of the transformer from the drivers, the rectifier arrangement including a filter capacitor coupled to the de output; the arrangement being such that timing of the OE signals supplied to the OE inputs is different for different ones of the plurality of drivers and such that different ones of the OE signals are delayed by different small delays so that different ones of the plurality of drivers are enabled at different time instants over a short period.