Direct-Current Power Supply Parallel-Machine Input Reverse Connection Prevention Circuit and Server System

A direct-current power supply parallel-machine input reverse connection prevention circuit and a server. The circuit comprises a first switch tube, second switch tube (Q). A first end of the first switch tube is used for being connected to a positive end of a first power supply and a second end of the first switch tube is connected to a positive input end of a first driving module. A first end of the second switch tube is used for being connected to a positive end of a second power supply and a second end of the second switch tube is connected to a positive input end of a second driving module.