TI MSP430F6779系列MCU能量监测参考设计
TI公司的MSP430F677x系列产品是多相电表系统级芯片(SoC),采用超低功耗MSP430 CPU和32位乘法器,能完成所有的能量计算,测量应用,以及24位sigma-delta转换器,精度优于0.1%,器件集成了512KB闪存,32KB RAM和支持320段的LCD控制器.满足或超过ANSI C12.20和IEC 62053标准.主要用在三相电表,公用表和能量监测.本文介绍了MSP430F6779主要特性,框图, 三相四线星形连接框图以及采用MSP430F6779的能量监测参考设计主要特性,框图,电路图,材料清单和PCB布局设计图.
The Texas Instruments MSP430F677x family of polyphase metering SoCs are powerful highly integrated solutions for revenue meters that offer accuracy and low system cost with few external components. The F677xfamily of devices uses the low-power MSP430 CPU with a 32-bit multiplier to perform all energy calculations, metering applications such as tariff rate management, and communications with AMR and AMI modules.
The F677x devices feature TI’s 24-bit sigma-delta converter technology, which provides better than 0.1%accuracy. Family members include up to 512KB of flash, 32KB of RAM, and an LCD controller with support forup to 320 segments.
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