DC brushless motor driving system based on CAN bus

The utility model provides a DC brushless motor driving system based on a CAN bus, and belongs to the technical field of CAN bus data communication and drivers. The direct current brushless motor driving system based on the CAN bus comprises a CAN communication interface, a CAN configuration switch, a system indicating lamp, a main control module, a rotating speed detection module, a motor protection module and a motor driving power module, the CAN communication interface and the CAN configuration switch jointly form a CAN communication part, the CAN configuration switch is connected with the main control module through the CAN communication interface, and the system indicating lamp is connected with the main control module through the rotating speed detection module. The system indicating lamp, the rotating speed detection module, the motor protection module and the motor driving power module are all connected to the main control module. The driver based on the CAN bus is used in a transmission line needing