ADE9178

RECOMMENDED FOR NEW DESIGNS

Energy Management DSP with PEN Fault Detection

Energy Management DSP with PEN Fault Detection

Viewing:

Overview

  • Metrology chip for use with any combination of the following AFEs
    • ADE9113 (3-channel, isolated, Σ-Δ ADC)
    • ADE9112 (2-channel, isolated, Σ-Δ ADC)
    • ADE9103 (3-channel, non-isolated, Σ-Δ ADC)
  • Can support up to four ADE9113/ADE9112/ADE9103 daisy-chained ADCs through 4-wire SPI
    • Supports up to a total of 12 ADC channels of data
  • 4-wire SPI for Host MCU communications up to 25 MHz
  • Total active energy calculation
  • Class C accuracy (0.5%), supports the following
    • MID 2014/32/EU Annex V
    • EN 50470-1:2006
    • EN 50470-3:2006
    • EN 50470-3:2022
    • IEC 62052-11:2020
    • IEC 62053-21:2020
    • OIML G 22:2022
    • NIST Handbook 44:2023
  • Total apparent energy calculation using filtered RMS
  • Energy accumulation, import and export for reverse power/vehicle to grid (V2G) applications
  • Basic power quality features
    • Short-duration undervoltage or overvoltage (dip/swell) detection
    • Short-duration undercurrent or overcurrent (dip/swell) detection
    • Line frequency calculation with 10 mHz accuracy
    • Angles between phase voltages and currents
    • Power-factor calculation
  • Configurable phase, gain and offset calibration registers for all ADC channels
  • Two configurable calibration frequency (CF) pulse outputs
  • Configurable: no load detection
  • Phase-sequence detection
  • RMS on full cycle, half cycle and filtered RMS on all ADC channels
  • Supported frequency range: 45 Hz to 65 Hz
  • Four user-programmable interrupt outputs (IRQs)
  • PEN open fault detection (BS 7671:2018 Amendment 1:2020)
  • Waveform streaming through UART transmit pin
  • Datapath multiplexing to allow any ADC data to be used for any data processing path
  • Temperature range: −40°C to +105°C
  • Available in 5 mm × 5 mm, 40-lead LFCSP package

The ADE9178 is a metrology digital signal processor (DSP) for use with a combination of ADE9113/ADE9112/ADE9103 sigma delta analog-to-digital converters (ADCs). The ADE9178 is a high accuracy, 3-phase electrical energy measurement IC primarily for the electric vehicle supply equipment (EVSE) market with serial peripheral interface (SPI) and two flexible pulse outputs. The ADE9178 can interface with up to four daisy-chained ADE9113/ADE9112/ADE9103 devices through SPI protocol. The ADE9178 incorporates all the signal processing required to perform total active energy, apparent energy measurements, and root mean square (RMS) calculations. A fixed function DSP executes this signal processing.

The ADE9178 is well-suited for the EVSE market due to its broad feature set such as protective earth and neutral (PEN) open fault detection without the need for any additional hardware, overcurrent, and overvoltage detection using RMS of half cycle/one cycle and vehicle to grid/home (V2X) capabilities.

The ADE9178 measures active and apparent energy in various 3-phase configurations, such as wye or delta services, with both three and four wires, single phase, and split phase while supporting both 50 Hz and 60 Hz line frequencies. The ADE9178 provides gain, offset, and phase calibration features for each ADC channel. The CF1 and CF2 logic outputs provide power information that is proportional to the measured accumulated energy.

The ADE9178 incorporates some basic power quality measurement features, such as short-duration undervoltage/undercurrent or overvoltage/overcurrent detection, line voltage period measurements, and angles between phase voltages and currents. A Host microcontroller unit (MCU) can be used to communicate with the ADE9178 through 4-wire SPI. Waveform streaming can be accessed by the Host MCU through the WAVEFORM_TX pin of the ADE9178. The ADE9178 also has four user-programmable interrupt pins, IRQ0, IRQ1, IRQ2, and IRQ3, to indicate that an enabled interrupt event has occurred. The ADE9178 is available in a 40-lead, TQFN-EP package.

For more details on how to setup the ADE9178 in an EVSE application, refer to the application note Using ADE9178 for EV Charger Metrology Solution.

Applications

  • Electric vehicle supply equipment
  • Shunt-based polyphase meters
  • Solar inverters
  • Energy and power monitoring

ADE9178
Energy Management DSP with PEN Fault Detection
ADE9178 Functional Block Diagram ADE9178 Typical Application Diagram ADE9178 Pin Configuration
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project
Ask a Question

Documentation

Learn More
Add to myAnalog

Add media to the Resources section of myAnalog, to an existing project or to a new project.

Create New Project

Software Resources

ADE9178 Calibration and Conversion Excel Sheet

ADE9178 driver and EVAL-ADE9178 example code 3


Hardware Ecosystem

Parts Product Life Cycle Description
ADE7978 PRODUCTION 3-Phase Metrology IC for Polyphase Shunt Meters
Modal heading
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project

Evaluation Kits

eval board
AD-ACEVSE22KWZ-KIT

AD-ACEVSE22KWZ-KIT

Features and Benefits

  • Metrology subsystem plus selected other features of a level 2, 7kW to 22kW electric vehicle supply equipment (EVSE)
  • Full-featured board for ADE9112, ADE9113, and ADE9178
  • Rated up to three phase, 240V RMS line to neutral voltage
  • Rated up to 32A current measurement with on-board shunts
  • Supports up to 22kW combined power transfer to load
  • Features MAX32672 low power, secure microcontroller
  • Supports LCD display for energy and state updates
  • Supports MODBUS™ protocol over RS-485 communication interface
  • Supports Protobuf™ messages to communicate with EVerest open source software (OSS)
  • IEC61851-compatible state machine implementation

Product Details

The AD-ACEVSE22KWZ-KIT is a reference design for the metrology subsystem plus selected other features of a level 2, 7 kW to 22 kW AC electric vehicle supply equipment (EVSE). It includes the ADE9113 isolated Σ-Δ analog-to-digital converter (ADC) coupled with the ADE9178 metrology DSP to accurately measure energy delivered to an electric vehicle (EV). It includes the MAX32672 ultralow- power ARM® Cortex®-M4 processor, a cost-effective, highly integrated, and highly reliable 32-bit microcontroller to accumulate energy measurements and securely send it to a host for display. A charge control state machine is run on the microcontroller to transition through different charge states when a charging plug is inserted into an electric vehicle. The kit includes a flexible printed circuit (FPC) connector and LCD to read the energy measurements and state transitions during a charging cycle. The power input/output, control pilot (CP), and proximity pilot (PP) signals are exposed on connectors at the edge of the board. The energy delivered to the EV is measured as a voltage drop across shunts and a resistor ladder network, which makes it easy to set up the boards in the field.

eval board
EVAL-ADE9178

Features and Benefits

  • Fully featured evaluation kit (EV kit) board for the ADE9178 and ADE9113 chipset
  • Up to 32 A current measurement with on-board shunts
  • Up to 240 VRMS nominal line neutral voltage measurement
  • CLI to read/write registers
  • GUI to read/write registers

Product Details

The ADE9178EVKIT# EV kit board allows the performance of the ADE9178 alongside the ADE9113 analog-to-digital converters (ADCs) to be evaluated. With the inclusion of the resistor ladder network and shunts, this ADE9178EVKIT# EV kit board allows for easy setup procedure due to the fact that no external components are needed.

The ADE9178EVKIT# EV kit board comes preprogrammed with software including a command line interface (CLI) tool to communicate with the EV kit over serial and a graphical user interface (GUI). The CLI and GUI tools provide access to the part registers for board calibration and calibration frequency (CF) pulse generation. For more details on how to use the CLI/GUI and access the detailed software guide, see the Evaluation Board Software section.

Full specifications on the ADE9178 and ADE91xx are available in the ADE9178 and ADE91xx data sheet, respectively, available from Analog Devices, Inc., and must be consulted with this user guide when using the ADE9178EVKIT# EV kit board.

AD-ACEVSE22KWZ-KIT
AD-ACEVSE22KWZ-KIT
AD ACEVSE22KWZ-KIT Board Photo Angle View AD ACEVSE22KWZ-KIT Board Photo Top View AD ACEVSE22KWZ-KIT Board Photo Bottom View
EVAL-ADE9178
EVAL-ADE9178 Angle View EVAL-ADE9178 Bottom View EVAL-ADE9178 Top View

Latest Discussions

Recently Viewed