Three-Phase Power Meter Reference Design

A cost-effective energy metering design for the residential market or utility providers

概述

Three Phase Power Meter

产品规格

Three Phase Power Meter Block Diagram

Three Phase Power Meter Block DiagramMicrocontrollers (MCUs)Microcontrollers (MCUs)SensorsSensorsWireless ConnectivityWireless Connectivity
  • KM3x :  Kinetis® KM3x-50–75 MHz带段式LCD的精确计量微控制器(MCU)，基于Arm® Cortex®-M0+内核
  • FXOS8700CQ :  Digital Motion Sensor - 3D Accelerometer (±2g/±4g/±8g) + 3D Magnetometer
  • KW41Z :  Kinetis® KW41Z-2.4 GHz双模式：BLE和802.15.4无线连接微控制器(MCU)，基于Arm® Cortex®-M0+内核

Technical and Functional Specifications

Connectors

  • Internal connector supporting Arduino® shield (Wi-Fi, Bluetooth) expansion boards

Interfaces

  • 4 x 40 segment LCD, including charge pump (values shown on LCD: V, A, W, Var, VA, kWh, kVarh, cos F, Hz, time, date
  • Isolated (4 kV) RS-232 port for monitoring, parameterization, and firmware upgrade
  • Integrated wireless 15W transmitter supports fast charging for Samsung® and Apple® devices
  • Digital control buck-boost converter
  • One control IC controls buck-boost converter, charge, Qualcomm algorithm, PD communication, and wireless power management

Design Features

  • Low-power design with operation in low-power modes and the use of built-in RTC (Li-battery backup)
  • 100 A current range, 85 to 264 V, 50/60 Hz voltage range

EMC

  • EMC proven design (EN61000-4-2, EN610004-4)

Accuracy

  • Accuracy class: C (active energy EN50470-3) and three or two percent (reactive energy EN62053-23)

购买

  • FRDM-KW41Z   Active

  • Part Description: Freedom Development Boards for Kinetis KW21Z, KW31Z and KW41Z MCUs. 2 boards per order.

  • Kit contains:

    • 2 FRDM-KW41Z Freedom Development Boards
    • Quick Reference Card
    • 2 USB cables
    • FRDM-KW41Z
    • 1 @ CNY
    • CNY965.02
    • 直接购买
    • 代理商
1579109330588723448640

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