基于LabVIEW的DC/DC变换器自动测试系统

Automatic test system for DC/DC converter based on LabVIEW

针对目前实验室DC/DC变换器测试项目增多、检测工作量大、较为繁琐且人为操作误差较大的现状,在LabVIEW环境下控制GPIB接口仪器开发了DC/DC变换器的自动测试系统(ATE)。根据虚拟仪器的设计思想,把系统中具有各功能作用的仪器通过GPIB接口卡连接起来,在模块化、层次化的软件控制和处理下,自动实现DC/DC变换器直流、开关和交流三大类参数的测试和数据处理,结合具体型号的DC/DC变换器验证了ATE的功能实现。系统功能完善、操作简单、扩展性强,能很好满足DC/DC变换器测试的需要。

At present, the DC/DC converter test projects become more complicated and the workload increases sharply, while man-made operation is very, fallible. This paper proposed a design of ATE which can be applied to DC/DC converter by controlling GPIB instruments based on LabVIEW. According to the virtual instrument principle, instruments, which carry out all kinds of function in system, are assembled by GPIB interface card. With controlling of modularization and hierarchy software, the ATE can automatically accomplish test of DC, switch and AC parameters and dispose the data. The functions of this ATE are qualified by a specific tape DC/DC converter. This system, which is operated simply and extended eonveniendy, can satisfy the requirements of test tasks.