基于MSP430单片机的功率测量装置设计

Design of Power Measuring Device Based on MSP430 Microcontroller

设计一种自动识别交直流电源,自动选择量程的功率测量装置。分析系统结构,设计了交直流电判断电路、自动量程切换电路。实验表明,测量电路简单实用,能够自动识别交流、直流电源,自动选择量程,功率测量范围广、测量精度高。

A type of power measuring device which can automatically identify AC/DC power supply and select range is designed in this article. The structure of the system is analyzed and the AC and DC judgment circuit and the automatic range switching circuit are designed as well. The experiment shows that the measuring circuit is simple and practical, and it can automatically identify AC and DC power supply and select the range with wide power measuring range and high measurement accuracy.