Two-Phase Power Meter Reference Design | NXP Semiconductors

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Two-Phase Power Meter Reference Design

TWO-PHASE-POWER-METER

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With the growing consumption of energy worldwide, particularly in the residential market, utility providers need increasingly accurate and cost-effective energy metering solutions. The Kinetis® M series two-phase electricity meter reference design addresses these accuracy and cost needs by providing a high-performance analog front end combined with an embedded programmable gain amplifier to increase the accuracy of energy measurement.

Block Diagram

Two Phase Meter

Two Phase Power Meter Reference Design Block Diagram
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Supported Devices

Wireless Connectivity

Multiprotocol MCUs

  • 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

Processors and Microcontrollers

KM Series Arm Cortex-M0+

  • KM1x: 50 MHz, Mainstream Precision Metrology Microcontrollers based on Arm® Cortex®-M0+
  • KM3x: 50–75 MHz Precision Metrology MCUs with Segment LCDs Based on Arm® Cortex®-M0+

Features

  • 200 A current range (CL200, TA 30A)
  • 85 to 264 V, 50/60 Hz 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 (4 kV) RS-232 port for monitoring, parameterization and firmware upgrade (optional)
    • Infrared optical port according to ANSI C12.18-2006 (optional)

Buy Options

MKM14Z128ACHH5-Image

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  • MKM14Z128ACHH5
    Active

  • Kinetis KM14: 50MHz Cortex-M0+ Metrology MCU, 128KB Flash, 16KB SRAM, 44-LGA.

Buy Options
MKM33Z128ACLH5-Image

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  • MKM33Z128ACLH5
    Active

  • Kinetis KM33: 50MHz Cortex-M0+ Metrology MCU, 128KB Flash, 16KB SRAM, Segment LCD, 64-LQFP.

Buy Options
N true 0 PSPTWO-PHASE-POWER-METERen 6 Application Note Application Note t789 2 Data Sheet Data Sheet t520 1 Fact Sheet Fact Sheet t523 2 Reference Manual Reference Manual t877 1 en_US en_US en Data Sheet Data Sheet 1 1 MKM14Z128ACHH5,MKM14Z64ACHH5,MKM33Z128ACLH5,MKM33Z128ACLL5,MKM33Z64ACLH5,MKM33Z64ACLL5,MKM34Z128ACLL5 1 English Kinetis M Data Sheet: 50MHz Arm<sup>&#174;</sup> Cortex<sup>&#174;</sup>-M0+ microcontroller(MCU), metrology/metering, 24-bit delta sigma ADCs, up to 128KB Flash/16KB SRAM (44-100 pin) 1414586645891709531958 PSP 1.8 MB None None documents None 1414586645891709531958 /docs/en/data-sheet/MKMxxZxxACxx5.pdf 1787214 /docs/en/data-sheet/MKMxxZxxACxx5.pdf MKMXXZXXACXX5 documents N N 2016-10-31 Kinetis KM: 50MHz Cortex-M0+ 64-128KB Flash (44-100pin) /docs/en/data-sheet/MKMxxZxxACxx5.pdf /docs/en/data-sheet/MKMxxZxxACxx5.pdf Data Sheet N 980000996212993340 2022-12-07 pdf N en Oct 28, 2014 980000996212993340 Data Sheet Y N Kinetis KM: 50MHz Cortex-M0+ 64-128KB Flash (44-100pin) Reference Manual Reference Manual 1 2 MKM14Z128ACHH5,MKM14Z64ACHH5,MKM33Z128ACLH5,MKM33Z128ACLL5,MKM33Z64ACLH5,MKM33Z64ACLL5,MKM34Z128ACLL5 2 English Kinetis M Reference Manual: 50MHz Arm Cortex-M0+ microcontroller(MCU) for metrology, 24-bit delta sigma ADCs, up to 128KB Flash / 16KB SRAM (44-100 pin) 1414586190808697069014 PSP 6.4 MB Registration without Disclaimer None documents Extended 1414586190808697069014 /secured/assets/documents/en/reference-manual/MKMxxZxxACxx5RM.pdf 6408097 /secured/assets/documents/en/reference-manual/MKMxxZxxACxx5RM.pdf MKMXXZXXACXX5RM documents Y N 2018-02-06 Kinetis KM: 50 MHz Arm<sup>®</sup> Cortex<sup>®</sup>-M0+ 64-128KB Flash (44-100pin) /webapp/Download?colCode=MKMXXZXXACXX5RM /secured/assets/documents/en/reference-manual/MKMxxZxxACxx5RM.pdf Reference Manual N 500633505221135046 2023-06-18 pdf Y en Feb 5, 2018 500633505221135046 Reference Manual Y N Kinetis KM: 50 MHz Arm<sup>®</sup> Cortex<sup>®</sup>-M0+ 64-128KB Flash (44-100pin) Application Note Application Note 2 3 4 Chinese 1321891486848724496514zh PSP 642.7 KB None None documents None 1321891486848724496514 /docs/zh/application-note/AN4255.pdf 642673 /docs/zh/application-note/AN4255.pdf AN4255 documents N N 2016-10-31 FFT-Based Algorithm for Metering Applications - Application Note /docs/zh/application-note/AN4255.pdf /docs/zh/application-note/AN4255.pdf Application Note N 645036621402383989 2022-12-07 zh 645036621402383989 Application Note N 面向计量应用的基于FFT的算法 - 应用笔记 4 English This application note describes how to use Fast Fourier Transform (FFT) in metering applications, especially for power and energy computing in power meters 1321891486848724496514 PSP 642.7 KB None None documents None 1321891486848724496514 /docs/en/application-note/AN4255.pdf 642673 /docs/en/application-note/AN4255.pdf AN4255 documents N N 2016-10-31 FFT-Based Algorithm for Metering Applications - Application Note /docs/en/application-note/AN4255.pdf /docs/en/application-note/AN4255.pdf Application Note N 645036621402383989 2022-12-07 pdf N en Jul 26, 2015 645036621402383989 Application Note Y N FFT-Based Algorithm for Metering Applications - Application Note 4 0 English This Design Reference manual describes a solution for a two-phase electronic power meter based on Kinetis KM3x metrology microcontroller (MCU) 1397543050451753933884 PSP 2.4 MB None None documents None 1397543050451753933884 /docs/en/application-note/DRM149.pdf 2392148 /docs/en/application-note/DRM149.pdf DRM149 documents N N 2016-10-31 Kinetis-M Two-Phase Power Meter - Reference Design /docs/en/application-note/DRM149.pdf /docs/en/application-note/DRM149.pdf Application Note N 645036621402383989 2022-12-07 pdf N en Apr 14, 2014 645036621402383989 Application Note Y N Kinetis-M Two-Phase Power Meter - Reference Design Fact Sheet Fact Sheet 2 5 8 English Kinetis<sup>&#174;</sup> KMx Fact Sheet: Low-power Arm<sup>®</sup> Cortex<sup>®</sup>-M0+ microcontroller(MCU) w/ 24-bit delta-sigma ADCs, segment LCD, security features for metrology and metering 1349742688252710314935 PSP 331.6 KB None None documents None 1349742688252710314935 /docs/en/fact-sheet/KNTSKM3XFS.pdf 331640 /docs/en/fact-sheet/KNTSKM3XFS.pdf KNTSKM3XFS documents N N 2016-10-31 KM Series MCUs – Fact Sheet /docs/en/fact-sheet/KNTSKM3XFS.pdf /docs/en/fact-sheet/KNTSKM3XFS.pdf Fact Sheet N 736675474163315314 2022-12-07 pdf N en Feb 26, 2021 736675474163315314 Fact Sheet Y N KM Series MCUs – Fact Sheet 6 2 English The Kinetis M series two-phase electricity meter reference design addresses these accuracy needs by providing a high-performance analog front end (24-bit AFE) combined with an embedded programmable gain amplifier (PGA) to increase the accuracy of energy measurement, along with a cost-effective shunt sensing circuit implementation and bill of materials (BOM). 1349468504313718396841 PSP 151.5 KB None None documents None 1349468504313718396841 /docs/en/fact-sheet/KNTSKM2PMTRFS.pdf 151539 /docs/en/fact-sheet/KNTSKM2PMTRFS.pdf KNTSKM2PMTRFS documents N N 2016-10-31 Kinetis KM3x MCU Two-Phase Metering Reference Design Fact Sheet /docs/en/fact-sheet/KNTSKM2PMTRFS.pdf /docs/en/fact-sheet/KNTSKM2PMTRFS.pdf Fact Sheet N 736675474163315314 2025-02-26 pdf N en Jun 16, 2014 736675474163315314 Fact Sheet Y N Kinetis KM3x MCU Two-Phase Metering Reference Design Fact Sheet true 0 TWO-PHASE-POWER-METER downloads en true 0 Y PSP Application Note 2 /docs/en/application-note/AN4255.pdf 2016-10-31 1321891486848724496514 PSP 3 Jul 26, 2015 Application Note This application note describes how to use Fast Fourier Transform (FFT) in metering applications, especially for power and energy computing in power meters None /docs/en/application-note/AN4255.pdf English documents 642673 None 645036621402383989 2022-12-07 N /docs/en/application-note/AN4255.pdf FFT-Based Algorithm for Metering Applications - Application Note /docs/en/application-note/AN4255.pdf documents 645036621402383989 Application Note N en None Y pdf 4 N N FFT-Based Algorithm for Metering Applications - Application Note 642.7 KB AN4255 N 1321891486848724496514 /docs/en/application-note/DRM149.pdf 2016-10-31 1397543050451753933884 PSP 4 Apr 14, 2014 Application Note This Design Reference manual describes a solution for a two-phase electronic power meter based on Kinetis KM3x metrology microcontroller (MCU) None /docs/en/application-note/DRM149.pdf English documents 2392148 None 645036621402383989 2022-12-07 N /docs/en/application-note/DRM149.pdf Kinetis-M Two-Phase Power Meter - Reference Design /docs/en/application-note/DRM149.pdf documents 645036621402383989 Application Note N en None Y pdf 0 N N Kinetis-M Two-Phase Power Meter - Reference Design 2.4 MB DRM149 N 1397543050451753933884 Data Sheet 1 /docs/en/data-sheet/MKMxxZxxACxx5.pdf 2016-10-31 1414586645891709531958 PSP 1 Oct 28, 2014 Data Sheet Kinetis M Data Sheet: 50MHz Arm<sup>&#174;</sup> Cortex<sup>&#174;</sup>-M0+ microcontroller(MCU), metrology/metering, 24-bit delta sigma ADCs, up to 128KB Flash/16KB SRAM (44-100 pin) None /docs/en/data-sheet/MKMxxZxxACxx5.pdf English documents 1787214 None 980000996212993340 2022-12-07 N /docs/en/data-sheet/MKMxxZxxACxx5.pdf Kinetis KM: 50MHz Cortex-M0+ 64-128KB Flash (44-100pin) /docs/en/data-sheet/MKMxxZxxACxx5.pdf documents 980000996212993340 Data Sheet N en None Y pdf 1 N N Kinetis KM: 50MHz Cortex-M0+ 64-128KB Flash (44-100pin) MKM14Z128ACHH5,MKM14Z64ACHH5,MKM33Z128ACLH5,MKM33Z128ACLL5,MKM33Z64ACLH5,MKM33Z64ACLL5,MKM34Z128ACLL5 1.8 MB MKMXXZXXACXX5 N 1414586645891709531958 Fact Sheet 2 /docs/en/fact-sheet/KNTSKM3XFS.pdf 2016-10-31 1349742688252710314935 PSP 5 Feb 26, 2021 Fact Sheet Kinetis<sup>&#174;</sup> KMx Fact Sheet: Low-power Arm<sup>®</sup> Cortex<sup>®</sup>-M0+ microcontroller(MCU) w/ 24-bit delta-sigma ADCs, segment LCD, security features for metrology and metering None /docs/en/fact-sheet/KNTSKM3XFS.pdf English documents 331640 None 736675474163315314 2022-12-07 N /docs/en/fact-sheet/KNTSKM3XFS.pdf KM Series MCUs – Fact Sheet /docs/en/fact-sheet/KNTSKM3XFS.pdf documents 736675474163315314 Fact Sheet N en None Y pdf 8 N N KM Series MCUs – Fact Sheet 331.6 KB KNTSKM3XFS N 1349742688252710314935 /docs/en/fact-sheet/KNTSKM2PMTRFS.pdf 2016-10-31 1349468504313718396841 PSP 6 Jun 16, 2014 Fact Sheet The Kinetis M series two-phase electricity meter reference design addresses these accuracy needs by providing a high-performance analog front end (24-bit AFE) combined with an embedded programmable gain amplifier (PGA) to increase the accuracy of energy measurement, along with a cost-effective shunt sensing circuit implementation and bill of materials (BOM). None /docs/en/fact-sheet/KNTSKM2PMTRFS.pdf English documents 151539 None 736675474163315314 2025-02-26 N /docs/en/fact-sheet/KNTSKM2PMTRFS.pdf Kinetis KM3x MCU Two-Phase Metering Reference Design Fact Sheet /docs/en/fact-sheet/KNTSKM2PMTRFS.pdf documents 736675474163315314 Fact Sheet N en None Y pdf 2 N N Kinetis KM3x MCU Two-Phase Metering Reference Design Fact Sheet 151.5 KB KNTSKM2PMTRFS N 1349468504313718396841 Reference Manual 1 /secured/assets/documents/en/reference-manual/MKMxxZxxACxx5RM.pdf 2018-02-06 1414586190808697069014 PSP 2 Feb 5, 2018 Reference Manual Kinetis M Reference Manual: 50MHz Arm Cortex-M0+ microcontroller(MCU) for metrology, 24-bit delta sigma ADCs, up to 128KB Flash / 16KB SRAM (44-100 pin) Registration without Disclaimer /secured/assets/documents/en/reference-manual/MKMxxZxxACxx5RM.pdf English documents 6408097 None 500633505221135046 2023-06-18 Y /webapp/Download?colCode=MKMXXZXXACXX5RM Kinetis KM: 50 MHz Arm<sup>®</sup> Cortex<sup>®</sup>-M0+ 64-128KB Flash (44-100pin) /secured/assets/documents/en/reference-manual/MKMxxZxxACxx5RM.pdf documents 500633505221135046 Reference Manual N en Extended Y pdf 2 Y N Kinetis KM: 50 MHz Arm<sup>®</sup> Cortex<sup>®</sup>-M0+ 64-128KB Flash (44-100pin) MKM14Z128ACHH5,MKM14Z64ACHH5,MKM33Z128ACLH5,MKM33Z128ACLL5,MKM33Z64ACLH5,MKM33Z64ACLL5,MKM34Z128ACLL5 6.4 MB MKMXXZXXACXX5RM N 1414586190808697069014 true Y Designs

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