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Faraday Current Sense and Measurement Solution
Quick Start Guide
2.
Faraday Overview
Faraday is a simple platform designed by Future Electronics System Design Center to demonstrate current
sensing designs. It implements four channels with current sensors controlled by two Infineon PSoC 4
(
CY8C4245)
microcontrollers
to measure voltage, current and power. Channel 1 and 2 are isolated channels
implemented with two Melexis integrated magnetic current sensors (
MLX91220
) controlled by Infineon
PSoC 4 (
CY8C4245
) (marked as PSoC-A on block diagram) to measure DC current up to 25A / 60V via
terminal block connections. Channel 3 is designed for current measurement up to 5A / 20V via an USB Type
C port connection, using Vishay current sense resistor (WSL series) combined with Diodes Inc. current
monitor (
ZXCT1086
) and Infineon PSoC 4 (
CY8C4245
) microcontroller (PSoC-B on block diagram). Channel 4
can measure up to 300mA / 5V via a USB Type A port connection using the same PSoC-B microcontroller as
channel 3.
The PSoC-A is also controlling the communication to PC through USB/UART bridge (
CY7C65213
). And the
PSoC-B controls user interface with capacitive touch keypad user buttons and the WiseChip OLED display to
show current, voltage and power measurement results.
