Synchronous transmission system of energy and information

The invention discloses a synchronous transmission system of energy and information, which comprises a direct current bus, a direct current power supply and a plurality of energy information transmission units, and the direct current power supply and the plurality of energy information transmission units are connected with the direct current bus. Each energy information transmission unit comprises a Boost circuit, a sampling circuit, a carrier detecting circuit, a control circuit and a driving circuit. The synchronous transmission system of the energy and the information enables power line carrier communication technology to be combined with characteristics of the Boost circuits, achieves synchronous transmission of the energy and the information under the premise that circuit modulation is not required additionally, volume of the system and use of corresponding devices are reduced, extra connecting lines are not required, and characteristics of communication channels can be designed according to requirements.