Handy Power Supply
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http://paypal.me/RegisHsu
This is a small size power supply with low cost and easy to make that only taking about 5 more hours. I was very happy with it and would share with you.
Power Supply Specifications
Input: 5v-16v/3A DC
Output: 1.3V - 15.5V/2 Amps
Materials and Tools
Here is a list of materials and tools I used for this project.
MATERIALS:
2 x LM2596S DC-DC module link
2 x Voltage/Current DC0-100V LED meter link
2 x WXD3-13-2W-10K link
2 x D3-13-2W knob link
2 x 4MM banana jacks(Red + Black) link
2 x 4MM banana sockets(Red + Black) link
1 x switch 117S 8.5*13.5MM link
1 x Power Jack DC-022 DC 5.5mm 2.1mm link
1 x AMS1117-5V link
1 x 5V 30mm fan link
6 x 2.5mm/6mm screw
1 x DC adapter 16v / 3A, the voltage range between in 9v~16v would be better.
TOOLS：
3D printer with PLA withe & gray color
Soldering iron
Make the Enclosure by 3D Printer
Download the STL file from here http://www.thingiverse.com/thing:1420193
And take about 2 hours to print them.
I have removed the USB slot which the 2 holes on the front panel, the new one will not be any hole on it.
Modify the DC-DC Converter
take away the small one of potentiometer which is on the DC-DC module, and replace the big one of potentiometer which shown in the picture. The picture 1 is not correct, please follow the number 3-3, 2-2, 1-1 to connect together as picture 2.
Schematic and Diagrams
Refer to the diagram to connect all of parts together
Assembler
put all of parts into this enclosure, and use the tape to protect the boards and wires to prevent any short circuit.
Testing
Plug in the 16V DC adapter , and switch on.
Tune the voltage and measure by multimeter to see the result.
That's all and have fun.
Start Working
I use it with my Spider Robot control board to do some experiment about MQ-2/MQ-135 air sensors.
It works fine.
If you are interested more about my projects, here is my bolg http://regishsu.blogspot.tw/