Analog Devices: EVAL-ADE7878EBZ Evaluation Board for ADE7878 - 3-phase Electrical Energy Measurement IC

atomar — Wed, 25 Jun 2014 00:52:57 GMT

Current Revision posted to Documents by atomar on 6/25/2014 12:52:57 AM

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Kit Overview

The Analog Devices EVAL-ADE7878EBZEVAL-ADE7878EBZ evaluation board contains an ADE7878ADE7878 and a LPC2368LPC2368 microcontroller (from NXP Semiconductors). The ADE7878 and its associated metering components are optically isolated from the microcontroller. The microcontroller communicates with the PC using a USB interface. Firmware updates can be loaded using one PC com port and a regular serial cable.

The evaluation board has been designed so that the ADE7878ADE7878 can be evaluated in an energy meter. Using appropriate current transducers, the evaluation board can be connected to a test bench or high voltage (240 V rms) test circuit. On-board resistor divider networks provide the attenuation for the line voltages. The evaluation board requires two external 3.3 V power supplies and the appropriate current transducers.

The Analog Devices ADE7878ADE7878 is a high accuracy, 3-phase electrical energy measurement IC with serial interfaces and three flexible pulse outputs. The ADE7878 incorporates seven ADCs, reference circuitry, and all signal processing required to perform total (fundamental and harmonic) active, reactive, and apparent energy measurement, fundamental active and reactive energy measurement, and rms calculations.

The ADE7878ADE7878 is suitable for measuring active, reactive, and apparent energy in various 3-phase configurations, such as wye or delta services, with both three and four wires. The ADE7878ADE7878 provides system calibration features for each phase, that is, rms offset correction, phase calibration, and gain calibration. The CF1, CF2, and CF3 logic outputs provide a wide choice of power information: total active, reactive, and apparent powers, or the sum of the current rms values, and fundamental active and reactive powers..

Key Applications: Energy Measurement Application

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Technical Documents

Learning Center

Type	Description
User Guide	ADI: User Guide for Evaluating the ADE7878 Energy Metering IC
Datasheet	ADI: Data Sheet for ADE7878 - Polyphase Multifunction Energy Metering IC
Solution Guide	ADI: Solution Guide for EMERGING ENERGY APPLICATIONS
Product Brief	ADI: Product Brief for ADE7878 Polyphase Multifunction Energy Metering Ics
Application Note	ADI: AN-1127 - Application Note for Differences Between the ADE7880 and the ADE7878
Application Note	ADI: AN-1076 - Application Note for Calibrating an ADE7878-Based, 3-Phase Energy Meter
Application Note	ADI: Application Note for KEY FEATURES OF ADE7878 POLY PHASE

Design Elements

Type	Description
CAD Model	ADI: CAD Model for ADE7878ACPZ

Video

Kit Features

Key Features for EVAL-ADE7878EBZEVAL-ADE7878EBZ Evaluation Board:

Evaluation board designed to be used with accompanying software to implement a fully functional 3-phase energy meter
Easy connection of external transducers via screw terminals
Easy modification of signal conditioning components using PCB sockets
LED indicators on the CF1, CF2, CF3, IRQ0, and IRQ1 logic outputs
Optically isolated metering components and USB-based communication with a PC
External voltage reference option available for on-chip reference evaluation
PC COM port-based firmware updates

Key Features for ADE7878ADE7878 Poly Phase Multifunction Energy Metering IC:

Highly accurate; supports IEC 60687, IEC 61036, IEC 61268, IEC 62053-21, IEC 62053-22, and IEC 62053-23
Compatible with 3-phase/3-wire, 3-phase/4-wire, and other 3-phase services
Less than 0.1% active energy error over a dynamic range of 1000 to 1 at 25°C
Supplies active/reactive/apparent energy, voltage rms, current rms, and sampled waveform data
Two pulse outputs, one for active power and the other selectable between reactive and apparent power with programmable frequency
Digital power, phase, and rms offset calibration
On-chip, user-programmable thresholds for line voltage SAG and overvoltage detections
An on-chip, digital integrator enables direct interface-to-current sensors with di/dt output
A PGA in the current channel allows direct interface to current transformers
An SPI®-compatible serial interface with IRQ
Proprietary ADCs and DSP provide high accuracy over large variations in environmental conditions and time
Reference 2.4 V (drift 30 ppm/°C typical) with external overdrive capability
Single 5 V supply, low power (70 mW typical)

Kit Contents

The Analog Devices EVAL-ADE7878EBZEVAL-ADE7878EBZ Evaluation Board is supplied with below contents:

Evaluation Board

Tags: eval-ade7878ebz, ade7878, analog_devices