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ENG-CANSAT-PICO-POWERING
(voir la source)
Version du 18 mars 2022 à 01:43
754 octets ajoutés
,
18 mars 2022 à 01:43
→Pico and PowerBoost
Ligne 34 :
Ligne 34 :
[[Fichier:ENG-CANSAT-PICO-POWERING-10.png|800px]]
[[Fichier:ENG-CANSAT-PICO-POWERING-10.png|800px]]
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Here how it works.
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{{underline|'''When Pico is plugged on computer:'''}}
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For sure, you can program and interact with the board.
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On the powering aspect:
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# The Pico and its 3.3V regulator are powered via USB
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# The Pico VBUS pin is set to 5V
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# The Pico VSYS pin is also at 5V. Thanks to the diode, the 5V VSYS does not inject current into the 5V output of the PowerBoost charger.
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# The 5V VBUS (on the Pico) do power the PowerBoost on the USB pin. As a result, the PowerBoost does charge up the Lipo.
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{{underline|'''When Pico is UNPLUG from computer:'''}}
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# The Pico VBUS is at 0V
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# The Pico VSYS is at 0V (but this will change).
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# The Pico regulator is not powered
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# The PowerBoost is running and generating 5V on its '''5V Output''' Pin. The 5V is
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