Data transmission system with power supply for the transmission means of a transmitter by a receiver

摘要

This system comprises energy transfer means including a primary coil (3) combined with a receiver module (M2) and supplied by an alternating, fixed-frequency electrical signal and a secondary coil (7) combined with a transmitter module (M1) and configured to supply transmission means (10) with electrical power. The transmitter module (M1) comprises a synchronous transmission circuit (13) for applying data in series to the transmission means (10) in synchronism with a first clock signal at the said fixed frequency and a shaper circuit (14) connected between the secondary coil (7) and the transmission circuit (13) for generating the said first clock signal in response to the generation of a power supply signal at the said fixed frequency in the said secondary coil (7). The receiver module (M2) comprises a synchronous reception circuit (4) driven by a second clock signal at the said fixed frequency derived from the said power supply signal of the said primary coil (3). <IMAGE>