Self-calibrating meter chip enables embedded electricity measurement

July 25, 2018 //By Nick Flaherty
Self-calibrating meter chip enables embedded electricity measurement
Analog Devices (ADI) has developed energy metering IC with autocalibration to simplify embedded single-phase energy measurements.

The ADE9153A uses mSure technology to automatically calibrate the measurement system, significantly reducing calibration time, labour and equipment costs. As the only energy measurement IC with autocalibration, the ADE9153A enables designers of intelligent lighting, datacentre, EV charging, and industrial applications to add with ease billing-grade accurate energy measurement to their products.

Traditional energy measurement ICs require calibration using expensive, external reference grade voltage and current sources. In contrast, the ADE9153A uses mSure technology to calibrate the system based on direct measurements of the metering systems energy measurement signal path. Products using the ADE9153A can autocalibrate during production, bypassing the need to build, maintain and deploy precision calibration racks on the production floor.

The ADE9153A supports active energy standards including IEC 62053-21, IEC 62053-22, EN50470-3, OIML R46, and ANSI C12.20.  Reactive energy standards IEC 62053-23 and IEC 62053-24 are also supported. It also includes power quality measurements such as zero crossing detection, line period calculation, angle measurement, dip and swell, peak and overcurrent detection, and power factor measurements from three high performance ADCs with 88 dB SNR and a high-gain current channel.

The ADE9153A is available now in a 32 lead LFCSP measuring 5x5x0.75mm and priced from $2.97. The ADE9153EVK evaluatoin board measures 61.214 x 110.471 mm for fitting into designs and is available for $110.

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