基于C51的高精度线性电源及监控系统设计

江苏信息职业技术学院毕业设计论文ABSTRACTIn order to satisfy the linear power supply control module includes other aviationplatform,1200HZ two-phase gyroscope driving power supply,1.5KVA400HZ powersupply box control system requires high precision and high output currentrequirements,at the same time in order to ensure the standard sinusoidal outputwaveform 1200HZ and 400HZ frequency AC power without distortion,the design ofa high precision multi output DC the power supply,the power supply system tooptimize the circuit structure through the design,increase the feedback to build amulti channel high precision DC power supply,power dual output voltage 15V,single output 5V,load current 0~1.5A in the process of change,the output voltagecan still ensure the high precision of output,through the use of high-qualitycomponents and unique design of the circuit structure,set up a meeting with highprecision and high stability,wide range of output air control equipment need.Aviationpower supply,and use (C8051F020 MCU 12864ZB graphics display module)output real-time monitoring of power supply,through the physical test and 24 bit highprecision desktop multimeter calibration,test and display the results as follows:theload rate (0~1.5A)is less than 0.1%,dual power supply output voltage (+15V)symmetry less than 0.2%,far beyond the expected design accuracy.The power supplyhas been installed in the aviation control box,and put into use,after the pilot run,theuse of good power.Key Words:Adjustable power supply;Measurement and control system;Multiplexhigh current;High stability and high accuracy