Pre-calibrated electric energy metering circuit and calibration method
A technology of electric energy measurement and circuit, applied in the direction of measuring electric variables, measuring devices, instruments, etc., can solve the problems of high cost and incompatibility with peripheral circuits, etc., and achieve the effect of reducing the cost of meter calibration, improving measurement accuracy, and simple calibration structure
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[0031] The implementation of the present invention is described below through specific examples and in conjunction with the accompanying drawings, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific examples, and various modifications and changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.
[0032] figure 2 It is a circuit structure block diagram of a preferred embodiment of a pre-calibration electric energy metering circuit of the present invention. Such as figure 2 As shown, a pre-calibrated electric energy metering circuit of the present invention includes at least a sampling module 201, an analog-to-digital conversion module 202, a digital signal processing module 203, a...
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