WBrumble
Junior Member level 3
All,
This is my first PCB build and I've got some questions before finalizing and moving to fabrication.
It's a 2 layer board, with led drivers (for RGBW), 12 volt supply, LED drivers running at 2mhz, and a maximum of 4 amps, 1 amp per color die.
The inputs at the bottom are; White, Red, Green, Blue are PWM inputs, and VCC/GND.
Board outline dimensions 3 3/16"x 3"
Two questions I have:
- Do I need to worry about EMI at 2mhz?
- What spacing for ground vias do I use between to top and bottom layer ground pours?
One more question not really related directly to the PCB design, could someone point me to a good read for thermodynamics and heatsink calculations/design.
Here are exported photos from eagle of the top and bottom of the board "if you see any issues please let me know":
![eagleUp_Light_Bar_board_bottom.png eagleUp_Light_Bar_board_bottom.png](https://www.edaboard.com/data/attachments/58/58842-5ae63e22150cc14bb24c54f46b5ee822.jpg)
![eagleUp_Light_Bar_board_top.png eagleUp_Light_Bar_board_top.png](https://www.edaboard.com/data/attachments/58/58843-5a23cd963d05e839603f12c6806f6bcd.jpg)
Thank you guys in advance for the help!
This is my first PCB build and I've got some questions before finalizing and moving to fabrication.
It's a 2 layer board, with led drivers (for RGBW), 12 volt supply, LED drivers running at 2mhz, and a maximum of 4 amps, 1 amp per color die.
The inputs at the bottom are; White, Red, Green, Blue are PWM inputs, and VCC/GND.
Board outline dimensions 3 3/16"x 3"
Two questions I have:
- Do I need to worry about EMI at 2mhz?
- What spacing for ground vias do I use between to top and bottom layer ground pours?
One more question not really related directly to the PCB design, could someone point me to a good read for thermodynamics and heatsink calculations/design.
Here are exported photos from eagle of the top and bottom of the board "if you see any issues please let me know":
![eagleUp_Light_Bar_board_bottom.png eagleUp_Light_Bar_board_bottom.png](https://www.edaboard.com/data/attachments/58/58842-5ae63e22150cc14bb24c54f46b5ee822.jpg)
![eagleUp_Light_Bar_board_top.png eagleUp_Light_Bar_board_top.png](https://www.edaboard.com/data/attachments/58/58843-5a23cd963d05e839603f12c6806f6bcd.jpg)
Thank you guys in advance for the help!
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