Energy Metering IC with Sensor Monitoring and Self-Calibration

The ADE9153B1 is a highly accurate, single-phase, energy metering IC with sensor monitoring and self-calibration. Sensor monitoring with mSure® technology allows meter health monitoring and advanced tamper detection. The monitoring feature allows the user to check the overall accuracy of the sensor and signal path to identify accuracy drifts that occur over time on the current and voltage channels, independently. Similarly, mSure offers advanced tamper detection with the ability to detect unusual changes on the sensors. mSure runs in parallel to the metering measurements, allowing uninterrupted and unaffected metrology in the ADE9153B. Self-calibration with mSure enables a meter to automatically calibrate the current and voltage channels without accurate reference meters or accurate sources when a shunt resistor is used as the current sensor. The self-calibration feature supports Class 1 and Class 2 meters.

The ADE9153B includes three high performance analog-to-digital converters (ADCs), providing an 88 dB signal-to-noise ratio (SNR). The ADE9153B offers accurate measurement of line voltage and current, and calculates active, fundamental reactive, and apparent energy, as well as rms. A wide range of power quality information is included, such as dip and swell detection. Current Channel A is ideal for shunts and has a flexible gain stage providing full-scale input ranges from 62.5 mV peak down to 26.04 mV peak. Current Channel B has gain stages of 1×, 2×, and 4× for use with current transformers (CTs). A high speed, 10 MHz, serial peripheral interface (SPI) port allows access to the ADE9153B registers.

1 Protected by U.S. Patents 8,350,558; 8,010,304; WO2013038176 A3; 0113507 A1; 0253102 A1; 0354266 A1; and 0154029 A1.

* mSure sensor monitoring

* Noninvasive, real-time, direct, precision measurement of the input signal path

* Detects changes in meter accuracy and amount of drift over the life of the meter

* Identifies sensor malfunction

* Enables advanced tamper detection methods

* Companion MCU firmware to facilitate diagnostic data reporting

* Supported for shunts on the phase line and CTs on the neutral line

* mSure self-calibration

* Self-calibration based on a direct measurement of the full signal path

* Calibration procedure not requiring a reference meter