G3i采集站中电源管理模块U9损坏的常见故障类型及检测方法

.Troubleshooting for power management module U9 of G3 iacquisition station

在G3i采集站中,电源管理模块U9是一个重要的器件。它是一个MSP430器件,是一种混合信号处理器。由它和FPGA通讯,对G3i采集站中的电源进行统一管理。随着G3i采集站使用年限的增加,U9的损坏率也在逐年增高。本文重点介绍了由于U9损坏而经常出现的加电控制电路不正常、电源反复启动、线电压不下传等故障及检测方法,并与其它器件引起的同类故障进行比较,从而快速准确地查出损坏器件。

As a MSP430 device and a mixed signal processor,the power management module U9is an important de vice in the G3i acquisition station. It is communicated with FPGA to manage the power in the G3i collection station. With the increase of service life of G3i acquisition station, the damage rate of U9 is increasing year by year. U9 dam age usually causes the power supply control circuit abnormal, the power supply restart, the line voltage faults, etc. The paper made detailed analysis on the above faults and gave out some fast and effective solutions.