直流稳压电源及漏电保护装置设计  

DC power supply and electric leakage protection device

作　　者：望超[1] 余良俊[1] 刘美中[1] 

机构地区：[1]中国地质大学江城学院机械与电子信息学部,湖北武汉430200

出　　处：《现代物业（下旬刊）》2013年第12期70-73,共4页Modern Property Management

摘　　要：本系统直流稳压电源部分以MIC29151为核心稳压器，由AT89S52控制ADC0809采样，通过1602液晶屏实时显示输出功率；漏电保护装置由仪表放大器AD623、电压比较器LM2901和CD4013双D触发器控制继电器开关实现漏电保护。该系统可以稳定和精确地输出5V电压，额定电流1A，输入电压为7～25V时。输出电压调整率为0．132％，输入电压为5．5～7V时，输出电压为5±0．05V，固定7V输入电压时，负载调整率为0．032％。是一种理想的直流稳压电源解决方案。The system DC power supply section to the core regulator MIC29151 by AT89S52 ADC0809 sampling control through 1602 LCD real-time display output power; leakage protection device consists of instrumentation amplifier AD623, LM2901 and CD4013 dual D flip-flop control relay switch to achieve leakage protection. The system can be stable and accurate output voltage of 5V, Current Rating 1A, 7-25V input voltage, the output voltage adjustment rate of 0.132%, the input voltage is 5.5-7V, the output voltage is 5±0.05V, fixed 7V input voltage, load regulation of 0.032%, is an ideal DC power supply solutions.

关 键 词：MIC29151 AT89S52 直流稳压电源 漏电保护 

分 类 号：TD672[矿业工程—矿山机电]