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Design of Intelligent Multi-rate Watt-hour Meter Based on MSP430 Single Chip

Department Of Control Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China Cui,GuangzhaoCollege of Electric and Information Engineering,Zhengzhou Institute of Light Industry, Zhengzhou,450002, China Cao,XianghongDepartment of Electric Engineering, Southeast U-niversity, Nanjing, 210096, China Zhang,Hua  
The main control and communicating interface circuits of the multi- rate watt- hour meter based on MSP430 single chip isdiscussed in detail in this paper. The principle of the multi- rate watt- hour meter is also introduced. The measuring of watt- hourhas higher accuracy by the special AD7755. Addresses and data of the clock/calendar and data storage circuits are transferred serial-ly via the two- line bidirectional I2C bus which simplifies circuit and enhances the reliability. Software and reliability design of this system are also mentioned.
【Fund】: 国家自然科学基金(50277006)
【CateGory Index】: TP368.12;TM933.4
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