The ADE7878 smart energy meter evaluation board is designed to be used together with accompanying software to implement a fully functional three-phase energy meter. The evaluation board contains an ADE7878 energy meter IC and a microcontroller. The ADE7878 and its associated metering components are optically isolated from the microcontroller. The evaluation board allows for the connection of various external transducers via screw terminals and modification of signal conditioning components using PCB sockets.
The ADE7878 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 evaluation board has been designed so that ADE7878 can be evaluated in an energy meter. Using appropriate current transducers, the evaluation board can be connected to a test bench or high voltage (240Vrms) test circuit. On-board resistor dividers networks provide the attenuation for the line voltages. The evaluation board requires two external 3.3V power supplies and the appropriate current transducers.