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大功率可编程直流电流源监控系统的开发
Development of Monitoring System on Programmable High-Power DC Current Source

DOI: 10.12677/IaE.2015.34016, PP. 106-113

Keywords: LabVIEW,串行通信,监控系统,直流电流源
LabVIEW
, Serial Communication, Monitoring System, DC Current Source

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Abstract:

本文针对可编程直流电流源输出电流的幅值、频率、波形可设定的要求,设计了电流源的系统组成方案和电流参考波形的调制算法。可编程直流电流源由基于PC机的上位机监控系统和基于DSP控制的DC-DC变换器组成,两者通过RS485工业通信总线联系。基于LabVIEW的上位机监控系统的开发可实现对可编程直流电流源输出电流波形的调制和监控。实际装置的运行结果表明,上位机监控系统的设计满足装置的功能要求,操作简明,运行可靠。
According to the output current amplitude, frequency and waveform requirements of the pro-grammable DC current source, the structure scheme and the modulation algorithm were designed. The programmable DC current source is composed of PC monitoring system and DC-DC converter controlled by DSP. PC communicates with DSP by the industrial communication bus RS-485. The PC monitoring system based on LabVIEW is developed, which can achieve the modulation and monitoring on DC current source output. The operation results show that the PC monitoring system satisfies the requirements of device, with simple operation and high reliability.

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