新型电度表芯片AD7755

A new type watt－hour meter chip AD7755

介绍了美国Analog Devices公司新近推出的芯片AD7755的原理、特点、主要功能及典型应用。该芯片能够精确地完成实时功率的测量。使用它组装的电子式电度表不但具有结构简单、准确度高和性能／价格比优越等诸多优点，而且在频率为50Hz／60Hz时，符合IEC521／1036工业设计标准。

：The paper introduces the principle、the character、main functions and typical application of AD7755 chip produced by Analog Devices Corporation．This chip can be configured for average real power measurement and digital－to－frequency conversion．Electronic watt－hour meter based on the chip can complete precisely measurement、having simple construction、and high ratio of function to price．AD7755 chip can support 50Hz／60Hz IEC 521／1036 standard．