Electric Energy Measurement Scheme | Ruineng Micro | Vipan Micro | Rongpai Digital Isolation Chip

11-24 2022: What is the significance of calculating the parameters in hfconst formula in the first step of the meter calibration method in the application note of EC takes the empirical value of 3200. Finally, the hfconst is calculated to be 9957, converted into hexadecimal number 0x26e5 and written into the hfconst register. 查看详情

11-24 2022: Can im1281b single-phase electric energy metering module be used to measure three-phase electric energy? Yes, please refer to the following application wiring diagram: precautions:There are 3 design methods of communication port with MCU:Three UART ports of MCU are connected to UART ports of three modules .One UART port of MCU, and the UART ports of three modules are connected through a multiplexer (such as CD4051) 查看详情

11-24 2022: Working principle of intelligent meter and automatic locking screw machine of intelligent meter Now smart meters are not only simple metering, but also transmit multiple data, as well as the function of electricity theft prevention. Smart meters are safer than mechanical meters before. Now we can even analyze our electricity usage habits. So what is the working principle of smart meters to the end? Now we will explain it separately in single-phase smart meters and three-phase smart meters. 查看详情

11-24 2022: Why should the smart meter be replaced? Answer: At present, most of the electric energy meters used by customers are mechanical meters or electronic meters with single function. Intelligent electricity meter has the functions of electric energy measurement, information storage and processing, real-time monitoring, automatic control, information interaction, etc. It is the most important measurement appearance for completing the automation and intelligence of electric energy information collection. 查看详情

11-24 2022: Description of dynamic range of Ruineng micro electric energy metering chip Dynamic range: refers to the ratio of the minimum value of ADC input signal to the maximum value of ADC input signal (i.e. full-scale value) when the power metering chip guarantees specific measurement or metering accuracy (full-scale value: minimum input signal). 查看详情

11-24 2022: Selection method of sampling resistance of current loop of Ruineng micro metering IC (CT) When designing metering products with Ruineng micro metering chips, the majority of electronic hardware engineers often encounter the situation of selecting different sampling resistors for different current specifications. 查看详情