5 ms·

I know that increasing voltage at those minuscule distances that usb-c opeates can cause electric arcs which is dangerous Increasing current on the other hand

I know that increasing voltage at those minuscule distances that usb-c opeates can cause electric arcs which is dangerous Increasing current on the other hand heats stuff up which... is also dangerous

parineum 3y ago
USB-C solves the arcing problem in a similar way that CCS (EV chargers) does. It doesn't engage the high voltage pins until a low voltage pilot makes contact. I'm not sure exactly how USB solves that for disconnecting (CCS locks the connector in) but I imagine the pilot would disconnect first and that would kill the PD pins during disconnect.
- ilyt 3y ago
  > but I imagine the pilot would disconnect first and that would kill the PD pins during disconnect. Don't imagine, just look at USB-C socket. So the answer is "not really", at least I didn't noticed pins for the power being longer
  - parineum 3y ago
    The 240W cables have a different spec so that's not indicative of what you'll see for 48v.
- notjulianjaynes 3y ago
  It seems that 48 volt USB-C might still have some issues with sparking during disconnect. There's likely a better source but here's some discussion on the topic I found. https://www.reddit.com/r/UsbCHardware/comments/106d7vi/usbc_240w_laptop_charging_no_show_at_ces_23/ https://www.reddit.com/r/UsbCHardware/comments/106d7vi/usbc_...