EVLSTCOMET-MET1, STCOMET Smart Meter Reference Design based on the STCOMET10 system-on-chip Application Processor

EVLSTCOMET-MET1, is a complete single-phase non-isolated meter with PLC communication, exploiting the performance capability of the full-feature STCOMET10 device. The meter has been designed on a cost effective two-layer 10 x 10 cm PCB. The STCOMET10 is a system-on-chip integrating a flexible power line communication (PLC) modem with a fully embedded analog front-end (AFE) and a line driver, a high performance 3-channel metrology function and a Cortex-M4F application core. The meter design includes the following sections: a PLC transformer less coupling circuit, single-phase metrology, power supply based on the VIPER38LE, line breaker driver, LCD/buttons user interface. The PLC transformer less line coupling is designed to allow the STCOMET device transmitting and receiving on the AC mains line using any narrow-band PLC modulation (single carrier or OFDM)