Data Brief

For further information contact your local STMicroelectronics sales office

July 2007

Rev 1

1/8

8

STEVAL-IPE007V1

Mono-phase energy meter based on ST7Flite

Features

Requirements for Class 1 Meters

MCU

switches

timer

easily

continues to measure accurately under tamper

condition

available

parameters reading

parameters

through ICC connector available on the board

Description

The board can be used to develop a single-phase

power / energy meter with tamper detection based

on ST7FLITE. It measures active power, voltage,

current, power factor and line frequency in a

single-phase distribution environment and

displays these parameters in addition to current

date and time. It differs from ordinary single-phase

meters because it uses two current transformers

(CT) to measure active power in both live and

neutral wires. This enables the meter to detect,

signal, and continue to measure the active energy

consumed reliably even after the meter has been

tampered. ST7FLite20 is the microcontroller used

to perform all the measurements in the meter.

This means there is no ASSP (Application

Specific Standard Product) used for energy

measurement. The active energy consumed is

available in the form of frequency-modulated

pulse outputs and the accumulated active energy

is displayed on the LCD display module

(GDM093).

STEVAL-IPE007V1

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