DC electric energy meter
A DC energy meter and current sampling technology, applied in the field of electricity meters, can solve the problems of small output dynamic range, poor stability, and high cost of DC energy meters, and achieve the effects of expanding the dynamic range, enhancing stability, and facilitating verification.
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[0025] This embodiment provides a DC electric energy meter, which can be used for a DC electric energy metering system, such as figure 1 As shown, it includes: a housing (not shown) and a main control module 1 and a metering module 2 arranged in the housing, where the main control module 1 may be a single-chip microcomputer, and the metering module 2 and the main control module 1 is connected, and also includes a current sampling module 3 and a voltage sampling module 4 respectively connected to the metering module 2, which are respectively used to transmit corresponding sampling data to the metering module 2 for metering. Specifically, the sampled analog signal It is transmitted to the metering module 2 for processing, and the corresponding voltage, current, power and other electrical energy parameters are calculated. The current sampling module 3 can be set in the housing of the DC power meter. For example, the current sampling module 3 can be integrated into an...
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