Direct-current high-voltage multi-path solid-state power controller

The invention relates to a direct-current high-voltage multi-path solid-state power controller which effectively solves the problems that the intelligent degree is high, the cost is low, wiring is simple, the size is small, and the requirement for rapid development of the rail transit industry is met. A central controller is connected with a GAN communication bus, and a state detector and a driver are connected with a parallel interface I/O1 of the central controller; the state detector and the driver are connected in parallel with a grid electrode of an efficacy switch tube, a drain electrode is connected with a power supply, and a source electrode of the efficacy switch tube is connected with a power supply detection circuit; the output ends of the power supply detection circuit, a current detection circuit and a voltage detection circuit are connected with an ADC conversion interface of the central controller through a serial port bus, and the current detection circuit and the voltage detection circuit are