Contactless transmission of power and control signals by multiplexing the frequency

For contactless power transmission systems, the actual scientific topic is the parallel two-way communication between the transmitting and receiving sides through the same power electromagnetic module. This technical solution enables the removal of the additional contactless module for the transmission of information and control signals and respectively, for improvement of the operational and technical characteristics of the contactless transmitters. This paper examines inductive methods that integrate bidirectional data transmission in the power module system for energy transfer. Various methods for the simultaneous transmission of energy and data are analyzed. Main attention is paid to the frequency multiplexing method, with its advantages over other methods.