Power and data transmission system for bus subscriber, has bus subscriber including integrated circuit with transceiver having controlled current source including connection associated with bus

摘要

The system (5) has a transmission medium (80) including two buses (83, 85), where transmission of power and data is performed via the medium. A bus subscriber (30) has an integrated circuit (50) including a transceiver for transmitting and receiving data according to a preset communication protocol, and a decoupling unit for providing a direct current supply voltage. The transceiver has a controlled current source including a connection associated with one of the buses and another connection connected with an output connection of the decoupling unit.