AN2317 Datasheet, PDF (1/27 Pages) STMicroelectronics – Energy Metering IC External Circuits

AN2317
Application Note
STPM01 Programmable, Single-Phase
Energy Metering IC External Circuits
Note:
Introduction
The STPM01 is implemented in an advanced 0.35µm BCD6 technology. It is designed for
active, reactive, and apparent energy measurement, including Root Mean Square (V_RMS
and I _RMS), instantaneous, and harmonic voltage and current.
This application note describes the STPM01 external circuits which are comprised of:
● a crystal oscillator,
● a power supply circuit,
● a voltage sensing circuit, and
● two current sensing circuits.
This document should be used in conjunction with the STPM01 datasheet.
April 2006
Rev 1
1/27
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