Comments on: Arduino Power Supply Schematic https://cyberblogspot.com/arduino-power-supply-schematic/ Not just another blogspot site Mon, 12 Sep 2022 14:53:45 +0000 hourly 1 https://wordpress.org/?v=6.8.3 By: Meng https://cyberblogspot.com/arduino-power-supply-schematic/#comment-9487 Mon, 12 Sep 2022 14:53:45 +0000 https://cyberblogspot.com/?p=4288#comment-9487 hi there, is the P-channel MOSFET (labelled as T1) conductive when there is no power source connected to the arduino?

]]> By: Meng https://cyberblogspot.com/arduino-power-supply-schematic/#comment-9485 Mon, 12 Sep 2022 05:58:17 +0000 https://cyberblogspot.com/?p=4288#comment-9485 hi there,
Thanks for the detailed explanation.
Understand that there is a P-channel enhancement MOSFET on the arduino power supply circuit.
Is that P-MOSFET conductive when do not have any power sources are connected to the arduino? If it is not conductive, how can the USB get connected to the arduino power supply circuit?
Please advise.
Regards

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