一种负荷阈值可配置的电源保护装置的设计  

A design of load threshold can be configured power protection devices

作　　者：刘悦[1] 罗中明[1] 吴春升 

机构地区：[1]哈尔滨理工大学测控技术与仪器黑龙江省高校重点实验室,黑龙江哈尔滨150080 [2]黑龙江省农副产品加工机械化研究所,黑龙江佳木斯154000

出　　处：《电子设计工程》2012年第9期106-109,共4页Electronic Design Engineering

摘　　要：介绍了一种基于工业以太网、MC9S12DT128的负荷阈值可配置电源保护装置的软、硬件设计方案。该方案采用TI公司的高侧测量电流并联监视器INA168采集电流信息,信号经调理后,与DAC8554输出的电压进行比较,通过比较结果控制电流回路通断。DAC8554输出电压可配置,过流锁定后可程控接触锁定。装置可配置且便于操作,可广泛应用于电子产品的测试系统中。A design scheme of software and hardware of configurable power protection devices is design based on the Industrial Ethemet and with Mcgs12DT128 as the core. The program uses TI＇s High-Side Measurement Current Shunt Monitor INA168 to collect current information. After the conditioning the signal compare with the DAC8554 output voltage, which result control the current loop through or off. Output voltage of DAC8554 can be configured. If over current lock, it can exposure lock programmed. The device can be configured and easy to operate, can be widely used in electronic product＇s test system.

关 键 词：过流保护 工业以太网 电源保护 自动保护 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]