A place for discussion of general audio, music and related topics.
June 1st, 2021, 1:51 pm
A new specification has been proposed to allow up to 240W of power availability on a USB C connector.
https://audioxpress.com/news/usb-specif ... usb-type-cTom
June 1st, 2021, 2:08 pm
Hard to believe the USB type C connector can handle that much power
June 1st, 2021, 2:12 pm
Pelliott321 wrote:Hard to believe the USB type C connector can handle that much power
Power isn't the issue, current is. That 240W is 5A at 48V....
Roscoe
June 1st, 2021, 2:16 pm
Need to beef up the wire gauge to handle the current. 240W at 48V/5A is alot to push down thin wire for a typical USB Type C cable. Safe current for 24 ga. copper is around 3.5A, would need to go to at least 22 ga. wire.
David
June 1st, 2021, 2:17 pm
potato potadoe
June 1st, 2021, 2:54 pm
It's amazing that the new spec is 10 times the original USB. Before you know it they will probably come with a whole house generator attached.
June 1st, 2021, 3:03 pm
Pelliott321 wrote:potato potadoe
How do you figure?
June 1st, 2021, 4:34 pm
Yes, using the new GaN SMPS USBC 45watt supply and the cable is rated for 100 watts. That is 20V@5A, but the current does not go up at lower voltages. Probably due to connector pins in the USBC plug/jack more than wire diameter.
June 1st, 2021, 8:34 pm
Apparently a lot of people are making USB add ons that are power pigs.
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