LED Driver Board
Posted: Sat Jun 16, 2018 10:46 pm
As some of you know, over the last 18 months I have been building various prototype LED driver boards:
Here are the original prototypes. These where used to evaluate and test various components:
Once I understood what worked best, I then downsized the board to fit a 900mAh or 1300mAh Li-ion battery. While I could make the board smaller, I am using it's shape to protect the battery from damage.
Producing these boards at home, allowed me to quickly make changes:
Then once I was happy with how it was all working, I could send the PCB off to China for manufacture. A stack of 10 panels of 4 PCB's cost me around AUD$20:
The final step was to add liquid solder paste and place the components on, then put into my home made reflow oven and 5 minutes later 'bing!' the board was ready for programming:
Of course, after spending all that time putting down solder paste and components, it gives you a lot of time to ponder on how you can further enhance the board. I can see another version being needed - and so life goes on...
Here are the original prototypes. These where used to evaluate and test various components:
Once I understood what worked best, I then downsized the board to fit a 900mAh or 1300mAh Li-ion battery. While I could make the board smaller, I am using it's shape to protect the battery from damage.
Producing these boards at home, allowed me to quickly make changes:
Then once I was happy with how it was all working, I could send the PCB off to China for manufacture. A stack of 10 panels of 4 PCB's cost me around AUD$20:
The final step was to add liquid solder paste and place the components on, then put into my home made reflow oven and 5 minutes later 'bing!' the board was ready for programming:
Of course, after spending all that time putting down solder paste and components, it gives you a lot of time to ponder on how you can further enhance the board. I can see another version being needed - and so life goes on...