AN2317 datasheet(1/27 Pages) STMICROELECTRONICS

Part #	AN2317

Description	Energy Metering IC External Circuits

PDF	27 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 27 page

April 2006

Rev 1

1/27

AN2317

Application Note

STPM01 Programmable, Single-Phase

Energy Metering IC External Circuits

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 (VRMS

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.

Note:

This document should be used in conjunction with the STPM01 datasheet.

www.st.com

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