Micro-USB Dual Supply - Dual Ideal Diodes

8086SKU: 103678
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Power multiple devices from two micro USB supplies!

Where does power go? Power from each Micro USB connector goes via a MOSFET "Ideal Diode" which is then connected to a Dual Female USB A connector.

What about back powering? The ideal diode prevents power from being fed back into either Micro USB port (power supply).

Which power supply is used? It will draw power from the supply with the highest voltage and if the voltages equalize (due to the current draw) it will share the load on the power supplies connected to both Micro USB connectors (droop method).

Where does data go? Data from each Micro USB port is connected to one of the USB Type A connectors (labelled TOP / BOT on the bottom of the PCB).

A micro-USB cable or USB-C cable may be required (not included).

Usage Examples

  • Create a redundant power supply for a Raspberry Pi (using any mix of mains/battery USB supplies)
  • Load share with multiple supplies with a similar specification (droop method).
  • Keep your Pi (or other USB powered devices) running whilst switching between power supplies.

Please Note

  • For use with 5V supplies and devices - Using anything else may damage your power supply/charger/USB devices and the Dual Supply board.
  • PCB and LED colour may vary
  • Raspberry Pi/USB Power Monitor/USB Load not included.

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