Energy measurement chip

31 August 2011 Power Electronics / Power Management

Maxim announced the launch of a new Teridian/Maxim energy measurement system-on-chip (SoC), the 78M6613.

The device is a solution for AC/DC power supplies that brings a high level of management and control to servers and other equipment in data centres. It is also suited to energy measurement needs in data communications and storage equipment, as well as home appliances, home automation networks and building automation.

The 78M6613 enables the capture and reporting of real-time energy data, which provides data centre managers with the ability to quantify where energy is needed, being used, and more importantly, being stranded. Visibility into this critical data is an absolute requirement in order to manage and control energy usage in power-starved data centres that cannot keep up with growing demands placed upon them.

With an embedded analog front-end and compute engine, small footprint and embedded firmware, the chip is specifically optimised to address the challenges of precision energy measurement inside AC/DC power supplies. As with all Teridian/Maxim brand energy measurement SoCs, it features high accuracy of ±0,5% over a 2000:1 dynamic range, and provides powerful tools for self-calibration.

The 78M6613 is a single-phase, fully self-contained AC power measurement and monitoring SoC with embedded AC load monitoring and control firmware. The small 32-pin QFN package is well suited for real-estate-limited designs such as power supplies, where power density and space are a premium. The device features the full range of AC power diagnostics, including power, power factor, voltage current, voltage sag and dip. On-chip Flash and a microcontroller (MCU) enable the storage of calibration coefficients and eliminate the need for external components.

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