Intelligent direct-current power supply of on-load LED display unit module

The invention relates to an intelligent direct-current power supply of an on-load LED display unit module, which comprises a single chip microcomputer, a communication interface, an LED display unit, a voltage amplification circuit, a switching power supply circuit, a tenth resistor, a ninth resistor, a seventh resistor and an eighth resistor, the model of the single chip microcomputer is STM32F103RCT6, the model of the communication interface is RS485. The intelligent direct-current power supply of the on-load LED display unit module is ingenious in structural design, adopts a control unit with a single chip microcomputer as a core, can monitor the working state of the power supply and the working state of the on-load LED display unit, and establishes communication with an upper computer through a 485 special communication module, so that the power supply and the on-load upper computer can be monitored and controlled, and the single-chip microcomputer can monitor and control the working states of the power s