Electric energy metering device

Abstract

The invention discloses an electric energy metering device. The electric energy metering device is characterized by comprising a current waveform sampling module, a current effective value instantaneous value calculation module and a current pulse generation module which are successively and electrically connected and is characterized by further omprising a voltage waveform sampling module, a voltage effective value instantaneous value calculation module and a voltage pulse generation module which are successively and electrically connected; the electric energy metering device also comprises a power instantaneous value calculation module and an energy pulse generation module which are mutually and electrically connected; and the current waveform sampling module and the voltage waveform sampling module are respectively and electrically connected to the power instantaneous value calculation module. The electric energy metering device can represent magnitudes of the effective values of the current and voltage and power consumption through a pulse mode, does not need to configure calibration parameters, an output register and a communication interface and greatly reduces power consumption and an area.

Description

technical field [0001] The invention relates to an electric energy metering device, in particular to an electric energy metering device with overcurrent detection. Background technique [0002] In recent years, with the rapid development and wide application of "smart" products such as smart home appliances, smart sockets, smart street lights, and smart LEDs (light-emitting diodes), electric energy metering modules, as the basic components of these products to achieve "smart", are more and more popular. people's attention. The energy metering module can "perceive" the real state of the product: if there is no power, it means that the confirmation is off, if there is power, it means that the confirmation is still working, and it can also count the power consumption to detect whether the current voltage and current are normal. If there is an abnormal state, Take corresponding measures. [0003] Now commonly used electric energy metering chips are mostly used in multi-functio...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an electric energy metering device in order to overcome the defects in the prior art that the design of the electric energy metering module system is very complicated, the power consumption is large, the cost is high, and the function of overcurrent detection is not included.

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