基于dsp的电能表

IEEE International Solid-State Circuits Conference, 1989 ISSCC. Digest of Technical Papers Pub Date : 1989-02-15 DOI:10.1109/ISSCC.1989.48195

M. Negahban, C. Chen, B. White, M. Ouellette, W. Germer

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引用次数: 2

摘要

介绍了一种采用3.5 μ m双聚CMOS技术实现的高精度三相电子电能表。它接收来自电压和电流传感器的输入，测量实功率和无功功率，并输出速率与能量流成正比的脉冲。该仪表在35年的时间里精确到读数的0.3%。给出了框图，并对器件功能进行了说明。DSP(数字信号处理器)是一个带有定制ROM/RAM的宏单元。它有一个16位的数据路径，可以在一个时钟周期内移位N位并累积。标量乘法和变量乘法都是可能的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A DSP-based watthour meter

A high-accuracy, three-phase electronic watthour meter, implemented in a 3.5- mu m double-poly CMOS technology, is described. It receives inputs from voltage and current sensors, measures both real and reactive power, and outputs pulses whose rate is proportional to energy flow. The meter is accurate to 0.3% of reading over 3.5 decades. A block diagram is presented, and the device functions are described. The DSP (digital signal processor) is developed as a macro cell with customized ROM/RAM. It has a 16-bit data path which can shift N bits and accumulate in one clock cycle. Both scalar and variable multiplications are possible.<>

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IEEE International Solid-State Circuits Conference, 1989 ISSCC. Digest of Technical Papers

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