Breadboard Power Supply Module 3.3V 5V or adjustable output

Discussion in 'The Projects Forum' started by Boky, Feb 10, 2015.

  1. Boky

    Thread Starter New Member

    Aug 30, 2014


    Input voltage:10-24VDC, recommended 18V wall power supply(Power Jack)

    Output voltage: 3.3V/5V/Adjustable 1.8-12V

    Output current: 650mA

    Pin Headers for input and output

    Central positive DC 2.1 power jack for input

    Size: 2.64” x 1.69”

    Project Description


    Switching mode power supply is much more efficient and have wider range of input voltages than linear regulator.

    Input voltage of this Breadboard Power Supply is 10-24V DC (Recommended 18V wall power supply) (Power Jack with positive center pin)

    Maximum current at output of this power supply is 650mA and no heat sinks are needed.

    Module also have adjustable voltage output in ranges between 1.8-12 Volts but in that case input voltage should be in range from 18 to 24 Volts, maximum output current in adjustable mode is 500mA.

    If 10 Volts are applied on input – output voltage can be adjusted in range from 1.8V to 6V, maximum upper voltage level in adjustable mode is increased as input voltage increases.

    3.3V 5V and adjustable modes are selected with three position slide switch, in adjustable mode voltage is adjusted with potentiometer.

    Distance between closer pins on headers on opposite sides used for Breadboard inserting is 1.7 Inches (43.18 mm) and they fit on breadboard which is built on that standard.

    Module can’t be inserted on some Breadboards so header on one side (Vout R or Vout L) should not be soldered if this module is used on that Breadboard with different dimensions between power rails.

    PCB dimensions are 67 × 43mm (2.64 × 1.69 Inches)

    This module will ideally work with 18V DC power supply adapter.

    More info about this project can be found in the Project files :) (components, schematic, some basics about circuit and similar stuff).

    If you want to source quality components fast this project can be bought as kit on Jameco electronics site (Professional made PCB is included):

    Breadboard Power Supply Module 3.3V or 5V output
  2. Wendy


    Mar 24, 2008
    I have put a lot of thought into this thread. Even though it is a commercial post (something we strongly discourage here on AAC) it will be allowed if you post pictures of your project (the finished board). If I don't see this in a week I will delete this thread.

    This specific forum is meant for people to show their projects so others may duplicate it if desired. The fact you showed a schematic is why it has been allowed to date.

    My post will be removed if you respond.
  3. GopherT

    AAC Fanatic!

    Nov 23, 2012
    Bill, you should at least tag him or quote his original post so he gets a notification when he checks the site. Hopefully you quote him so he gets an email notification if he does not login regularly.

    Finally, I agree that it is commercial so the same rules here could eventually apply here as used in the flea market area - 100 posts - if we get too much activity from drive-bys.
  4. Wendy


    Mar 24, 2008
    He has been PMed, as is my usual mode.

    We discussed it in the mod forum before I decided to do this. If an actual picture had been posted then it would not have gone this far.

    The TS has been a member for 9 months or so.