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Efficiency and EMI improvements#1

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DerSpatz wants to merge 1 commit intosolderparty:mainfrom
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Efficiency and EMI improvements#1
DerSpatz wants to merge 1 commit intosolderparty:mainfrom
DerSpatz:main

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Changed the voltage supply for the backlight from +3.3V to +5V. This should improve the power efficiency slightly, as the AP3032 is more efficient at 5V input, and the LDO needs to handle less current.

Also added vias next to the GND pads of the USB-C connector, this might slightly improve EMI at no extra costs.

Changed the voltage supply for the backlight from +3.3V to +5V. This should improve the power efficiency slightly, as the AP3032 is more efficient at 5V input, and the LDO needs to handle less current.

Also added vias next to the GND pads of the USB-C connector, this might slightly improve EMI at no extra costs.
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