Electro-optical conversion circuit, optical communication system and LED lamp

An electro-optical conversion circuit, an optical communication system and an LED lamp are connected with the input end of an optical fiber and used for sensing the working state of equipment to be monitored through sensing electricity so as to output sensing signals. The control circuit outputs a direct-current voltage signal based on the induction signal, and the direct-current voltage signal carries working state information of the to-be-monitored equipment; the voltage-current conversion circuit converts the direct-current voltage signal into a first current signal and a second current signal; the light-emitting circuit emits light according to the first current signal to output an optical signal to the optical fiber. The analog electric signal of the induction circuit is converted into the optical signal, and then the optical signal is transmitted through the accessed optical fiber, so that the transmission rate and the transmission efficiency of the electric signal are greatly improved, and big data man