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STPM32-based single-phase energy measurement evaluation board with parallel current-mode sensor

EVALSTPM32

Overview

The STPM32 energy metering evaluation board is a class 0.2, single-phase meter with shunt current sensor for power line systems with V_nom= 140 to 300 V_(RMS), I_nom/ I_max= 5/100 A_(RMS), f_lin= 50/60 Hz ± 10% and T_amb= -40 to +85 °C.

Measured active/reactive power can be output from two programmable LEDs on the board.
The board can be interfaced with a PC running evaluation software through an isolated RS232 port, or through the STEVAL-IPE023V1 USB isolated interface tool for configuration and data reading.
The board also has SPI/UART pins available to interface a microcontroller for application development.

Main features

0.2% accuracy single-phase meter
V _nom (RMS) = 140 to 300 V, I _nom /I _max(RMS) = 5/100 A, f _lin = 50/60 Hz ± 10%
Connector for USB isolated hardware programmer tool STEVAL-IPE023V1 and PC GUI
RS232 and UART isolated connectors to PC GUI
SPI/UART switch for device peripheral selection
2 programmable LEDs on board
Digital expansion to external system-on-chip or MCU
3.3 V power supply: external or through STEVAL-IPE023V1 isolated USB board
IEC61000 standard compliant
RoHS compliant

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-05-09 08:10:47

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