Why are DC dowels still widely used to charge modern laptops / notebooks, even if they require less than 100W? USB Type C seems to be better in everything…
I can only speculate now, but a laptop with less than 100W probably still needs more than 5V operating voltage.
To convert that would have to obstruct additional voltage converter in the laptop?
But only a guess.
I mean USB c is designed for up to 20V at 5A
I thought USB basically transmits only 5V? Or does USB C do that?
Overall, a hollow plug is much more stable on the side than a short micro USB or - C plug.
This is actually negotiated USB Type C supports power management. This is the quick charge function on mobile phones. Then the voltage goes up to 20 V and the current up to 5A. This makes services Bus 100 W possible.
This is due to the backward compatibility of the USB standard. Although it is theoretically possible to load a laptop with USB Type C and active power management, but not without…
Many manufacturers have been using the same connector for years (even 10 years and more). There have probably accumulated in the course of time many power supplies. Think you just want to keep a certain compatibility. I would be annoyed if I suddenly needed new plugs.
Fast charging is up to 12V. I do not know a single phone, which loads with 20V.
Interesting.
Here it was also about what is possible according to USB 3.1 C standard. And that's 20 V.
My tow top needs 19.5 V and max 9.5 A. This fits no USB standard. That's why the power supply with hollow plug is the right choice. A hollow plug is compared to a USB plug the stabielere variant gegeüber the sensitive USB connectors.
The answer to your question is pretty simple, because it's not a promotional feature and would make production more expensive. The offer is adapted to the consumer and this would have no advantage. Maybe this will be different in 5 or 10 years, but at such a time horizon, the devices are not designed anyway. Why, you know that the consumer needs a new device in 10 years anyway.
For such devices that's right, but I have a new convertible, which could be well charged with 65W of USB C.
But one thing remains, what speaks for a hollow connector, that's the stability against USB-C, which is a cramp by the Miniaturrisierung. The plugs or sockets go so often defective.
