ATX PSU Dev Board
Release status: Working
Description | A board to break an ATX power supply connector into terminals.
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License | Creative Commons Attribution-ShareAlike 3.0
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This board is inspired and based on http://www.sparkfun.com/products/9558 . It has wider traces to carry more current. Source at https://github.com/ultimachine/ATX-PSU-Dev-Board.
Contents
BOM
- F1 5A MFR1100
- F2 11A MFR1100
- F3 5A MFR1100
- F4 5A MFR1100
- F5 5A MFR1100
- J1 ATX24RH ATX24_RIGHT_ANGLE
- JP1 1X02
- JP2 1X06
- LED1 LED3MM
- LED2 LED3MM
- R1 30R HPS923
- R2 22R CA4050
- R3 1K
- R4 1K
- X2 MSTBA10
Introduction
What's in the box
Preparation
Tools
The following tools and materials are required to assemble the ATX PSU Dev Board:
- Soldering Iron
- Solder
- Flush/diagonal cutters
Additional tools that might be helpful, but not required:
- Lead bender (some 3D printable ones can be found online)
Soldering
If you do not have prior experience soldering, we recommend checking out a few of the following websites for tutorials.
- http://mightyohm.com/files/soldercomic/FullSolderComic_EN.pdf
- http://www.ladyada.net/media/common/soldering.pdf
- http://store.curiousinventor.com/guides/How_to_Solder
- http://www.sparkfun.com/tutorials/106
- http://radiojove.gsfc.nasa.gov/telescope/soldering.htm
Assembly
Board Orientation
The components of this board will be inserted on the side with the outlines.
Step 1
Begin by inserting the two 1k ohm resistors and the LEDs into the board. The LEDs should have the longest lead in the hole facing the resistor. If they are inserted incorrectly they will not work. This is because they are diodes. Diodes only allow current to flow in one direction. Resistors are not polarized components, so they can be inserted in orientation.
Step 2
Next flip over the board and solder the components in. You may need to slightly bend the leads to prevent the componets from falling out of the board.
Step 3
Now that the components are soldered in and secure, you can cut the leads.
Step 4
The fuses will be inserted next. They have a coating that slightly descends down the leads as shown below.
In order to make a good connection the fuses should slightly hover over the holes. This is so the coating on the leads does not interfere with soldering. You want to bring the fuse above the board. This can be done with RepRap filament or something else, such as a long screw. The orientation of the fuses does not matter.
Step 5
You will need to remove the filament before continuing.
Now is a good opportunity to inspect the solder joints. Since the connectors and fuses on this board might carry as much as 10 amps you want a good solder connection. You can check the quality of the solder joint by looking at the other side of the leads. A good connection is shown on the left lead, with a potentially weak one on the right lead. Add some flux and reheat the joint to touch-up the connections if needed.
Step 6
Next you will want to solder in the remaining resistors. Again, orientation does not matter for resistors.
Header Pin Preparation
Next locate the header pins in the parts bag. You will need to break them into a strip of 6 and 2 as shown below. This can be done with flush cutters.
Step 7
Solder the header pins as shown.
Step 8
Add the recieving end for the pluggable headers.
Step 9
Next you will want to add the ATX connector. It has barbs on the housing that should clip onto the circuit board. Make sure the connector is well seated before soldering.
You have now completed assembly of the ATX PSU Dev Board!
Usage
In order to turn the power supply on, a jumper between "PS ON" and "GND" must be added. Optionally, this can be connected to a micro controller.
When an ATX power supply is connected to the board and turned on the "PW OK" and "5V" light will turn on. Otherwise if not turned on but connected, just the "5V" light will be on.
Finally you can connect the pluggable headers into the board and power your project!
Source
The source for the ATX PSU Dev Board can be found in the UltiMachine repositories on GitHub.com at https://github.com/ultimachine/ATX-PSU-Dev-Board.
Issues
Product support inquiries can be directed to [email protected]. In the event there is an error in the documentation or problem with the board, please report the issue to the bug tracker at https://github.com/ultimachine/ATX-PSU-Dev-Board/issues.