智能电源控制原理图（PADS9.5绘制），通过单片机控制电源开关，检测主电源输入，切换备用电源，或根据约定协议按上位机要求给上位机断电-Intelligent power control schematic (PADS9.5 drawing), through the MCU control power switch, the main power input is detected, the switching standby power, or under the provisions of the agreement according to the requirements of the PC to the host computer power