Hot plug circuit based on domestic discrete components

The invention relates to a hot plug circuit based on domestic discrete components, and belongs to the field of circuit design. The hot plug circuit comprises an input filter circuit, a switching circuit and a logic gate + NMOS control circuit, the output end of the input filter circuit is connected with the input end of the switching circuit, and the output end of the logic gate + NMOS control circuit is connected with the control end of the switching circuit. According to the invention, the hot plug function is realized by the analog circuit constructed by discrete devices, so that the cost is reduced to a certain extent, and localization is realized. The method is applied to hot plug of a case, updating or capacity expansion can be carried out under the condition of startup without influencing system operation, and when a fault occurs, the system can carry out fault analysis under the condition of uninterruptible power supply, so that the cost is reduced, and the efficiency is improved. 本发明涉及一种基于国产化分立元器件的热插