STEVAL-IPE007V1 datasheet(1/8 Pages) STMICROELECTRONICS

部件名	STEVAL-IPE007V1

功能描述	Mono-phase energy meter based on ST7Flite

PDF	8 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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1 / 8 page

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

■ Satisfaction of IEC 61036 Accuracy

Requirements for Class 1 Meters

■ Cost-Effective: no ASSP used, single ST7F

MCU

■ Large voltage and current operative range

■ AFE(Analog Front End) operation amplifier

switches

■ Resistor divider used as voltage sensor

■ Works powered from a capacitive power supply

■ RTC interface using SPI for display date and

timer

■ Design with other ST7 MCU can be re-used

easily

■ Tamper detection: detects, signals and

continues to measure accurately under tamper

condition

■ Software calibration for analog circuit, PC GUI

available

■ External EEPROM for reliable storage of

parameters reading

■ LCD module interface for displaying up to 7

parameters

■ Embedded software easily upgradeable

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

www.st.com

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