Smart power IC simplifies AC-mains metering

Lexington, Mass – STMicroelectronics’ STPM01 incorporates all of the core circuitry required to serve as a single chip electric (AC mains) energy/power meter in the simplest low-end equipment or as a peripheral in sophisticated microprocessor-based meters that measure such quantities as reactive power. It’s designed as viable alternative to the traditional electromechanical meter, which has remained essentially unchanged for over a century, and claims higher accuracy, reliability and robustness. Boasting higher flexibility as well, it can be adapted for multi-tariff billing, pre-payment, power outage detection, and automated meter reading services, and the meter can be protected against tampering.