Schematic improvement: Tie VBUS and VSYS together on each Pico

hrvach / deskhop

Fast Desktop Switching Device

GNU General Public License v3.0

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Schematic improvement: Tie VBUS and VSYS together on each Pico #62

Open kpfleming opened 3 months ago

kpfleming commented 3 months ago

According to the section 4.5 of the Pico datasheet, when only a single power supply is used for the Pico VBUS and VSYS can be tied together. This eliminates a small voltage drop across a diode in the power circuit, improving efficiency and eliminating some voltage ripple on VSYS.

s51517765 commented 3 months ago

Is this same as the one below?

https://github.com/hrvach/deskhop/issues/9#issuecomment-1874975203

kpfleming commented 3 months ago

No, that's for powering both Picos from one source. This one is for a small improvement on each side, but that does not tie the sides together.