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The traditional metering device has some problems in system reliability, electricity-stealing prevention and accuracy. In order to solve the above problems, a new type of integrated high-voltage energy metering device is designed in this paper. The equal potential of the measuring integrated circuit is suspended on the high-voltage side. The AD7753 is used as the core of the electric energy measurement...
Impedance measurement is a method by which the condition of a battery may be assessed. The realization of on-line monitoring of internal resistance of single cell is important to improve the safe operation of the battery backup system. At present there are many internal resistance measuring methods, such as the density method, the terminal voltage method, the momentary load test method, etc. After...
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