Overview

Two Phase Power Meter Reference Design

Specifications

Two Phase Power Meter Reference Design Block Diagram
Two Phase Power Meter Reference Design Block Diagram

Two Phase Power Meter Reference Design Block Diagram

Block Diagram Category Products Features
Two Phase Power Meter Reference Design Block Diagram
Microcontrollers (MCUs)
KM1x: Kinetis® KM1x-50 MHz, Mainstream Precision Metrology Microcontrollers based on Arm® Cortex®-M0+  KM1x MCUs enable single-chip one-, two-, and three-phase electricity meters, as well as flow meter and other precision measurement applications.
KM3x: Kinetis® KM3x-50–75 MHz Precision Metrology with Segment LCD MCUs based on Arm® Cortex®-M0+  KM3x MCUs enable single-chip one-, two-, and three-phase electricity meters, as well as flow meters and other precision measurement applications.
Sensor
FXOS8700CQ: Digital Motion Sensor - 3D Accelerometer (±2g/±4g/±8g) + 3D Magnetometer  6-Axis eCompass (3-Axis Mag, 3-Axis Accel)
Wireless MCU
KW41Z: Kinetis® KW41Z-2.4 GHz Dual Mode: Bluetooth® Low Energy and 802.15.4 Wireless Radio Microcontroller (MCU) based on Arm® Cortex®-M0+ Core  Nine low-power modes to provide power optimization based on application requirements

Technical and Functional Specifications

Features

  • 200 A current range (CL200, TA 30A)
  • 85 to 264 V, 50/60Hz voltage range
  • Two types of installation: Form 2S or Form 12S
  • Accuracy class: ANSI C12.20-2002 Class 0.2
  • Line frequency measurement (for precision zero-cross detection)
  • Current transformer sensing circuit implementation for each phase
  • Low-power modes including the use of built-in RTC (Li-battery backup)
  • AMI expansion header supporting 2.4 GHz 802.15.4 or HAN/NAN (with 6loWPAN IPv6) communications for AMR and remote control
  • EMC proven design (ANSI C62.41, IEC 61000-4-4)

Peripherals

  • 8 x 20 segment LCD, including charge pump
  • LED pulse outputs (kWh, kVARh)
  • Isolated (4kV) RS-232 port for monitoring, parameterization, and firmware upgrade (optional)
  • Infrared optical port according to ANSI C12.18-2006 (optional)

Networking

  • Smart Metering Connectivity

Power & Energy

  • Two-Phase Meters

Buy

  • MKM14Z128ACHH5   Active

  • Kinetis KM14: 50MHz Cortex-M0+ Metrology MCU, 128KB Flash, 16KB SRAM, 44-LGA
    • MKM14Z128ACHH5
    • 10K @ US
    • $1.50
    • Sample
    • Buy Direct
    • Distributor
    • MKM14Z128ACHH5R
    • 10K @ US
    • $1.50
    • Distributor

  • MKM33Z128ACLH5   Active

  • Kinetis KM33: 50MHz Cortex-M0+ Metrology MCU, 128KB Flash, 16KB SRAM, Segment LCD, 64-LQFP
    • MKM33Z128ACLH5
    • 10K @ US
    • $1.80
    • Sample
    • Buy Direct
    • Distributor
    • MKM33Z128ACLH5R
    • 10K @ US
    • $1.80
    • Distributor
1553107183764715046501

Get Started

1553107183498719908935

Design Resources