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PowerBANK-4

This is an simple project for a 4-lines power supply (9 volt) bank capable of powering small household devices.

powerbank-4-built

Specifications

Features

  • 12-15V AC/DC power plug for external input power supply (center-negative)
  • Input with polarity test
  • 4 isolated and stabilized 9V-250mA center-negative output (common ground)

package-inside

Hardware

Schematics and PCB layouts are designed with ExpressPCB free CAD software.

Schematic:

board-schematic

PCB Layout:

board-pcb

About

Author : Alessandro Fraschetti (mail: gos95@gommagomma.net)

Licence

This project is under the MIT license. You are free to use this for any purpose, just try to give credit in the documentation of your project.