USB C Fast Charging vs QC 2.0

[FearoftheNight]

In Google's event they stated that with USB C it would charge faster. Can someone elaborate on how USB C charges faster and if this is some kind of proprietary tech like Qualcomm's QC 2.0? If so does this mean I need special high amp chargers?

 

[zebrax2]

Version 3.1 now supports 5 V, 12 V, and 20 V on the pins to allow the higher power output without excessive current, but even the current has been increased to a maximum of 5 A which is much higher than before.

http://www.anandtech.com/show/8539/usb-power-delivery-v20-and-billboard-device-class-v10-specifications-finalized

As for the charger im guessing you would need a new one that support USB power delivery 2.0

 

[shabby]

You'll need something like this http://www.amazon.com/gp/product/B014F2NQ36?pldnSite=1

So will qualcomms quick charge 3 get any traction once usb type c starts rolling out with its new power delivery?

 

[FearoftheNight]

http://www.anandtech.com/show/8539/usb-power-delivery-v20-and-billboard-device-class-v10-specifications-finalized

As for the charger im guessing you would need a new one that support USB power delivery 2.0

You're saying that this is a separate spec that exceeds that of say my Motorola Turbo charger? How much faster is this spec than QC 2.0?

 

[VirtualLarry]

Ugh, some new charging spec? Is this why those Orico 5-port USB chargers have been on sale / ShellShocker lately for $10 or so? (three 5V 1.0A ports, two 5V 2.4A, AC input)

 

[destrekor]

Ugh, some new charging spec? Is this why those Orico 5-port USB chargers have been on sale / ShellShocker lately for $10 or so? (three 5V 1.0A ports, two 5V 2.4A, AC input)

Not exactly a new spec, not like the Qualcomm spec. This one is now a universal spec for USB 3.1.

Which is awesome.

 

[kpkp]

Not exactly a new spec, not like the Qualcomm spec. This one is now a universal spec for USB 3.1.

Which is awesome.

It actually isn't that simple, it's a USB type-C spec but not USB Power Delivery spec, PD doesn't have a spec for more than 2A at 5V.

 

[destrekor]

It actually isn't that simple, it's a USB type-C spec but not USB Power Delivery spec, PD doesn't have a spec for more than 2A at 5V.

No, it is PD 2.0 spec.
Remember, Type-C isn't specifically a 3.1 connector. There are already some devices with the Type-C connector that remain USB 2.0.

PD spec is compatible with 2.0, 3.0, and 3.1. PD spec is capable of delivering 20V @ 5A (100W).

However, I'm not sure if we'll see PD spec in standard USB chargers. Chargers can already delivery whatever they want to deliver, as they only provide power and don't need to follow the standard USB power limitations (which apply if a manufacturer doesn't implement PD spec). PD spec only applies when extra power is necessary while data transmission is still necessary, so you can charge and use the USB throughput at the same time. I don't know if it'll cost too much for manufacturers to include the circuitry that allows for PD spec profiles - it'd be nice so that you can charge from other compatible devices and not need the wall wart charger, especially if you want to transfer data from another device and charge at the same time.

 

[kpkp]

No, it is PD 2.0 spec.
Remember, Type-C isn't specifically a 3.1 connector. There are already some devices with the Type-C connector that remain USB 2.0.

PD spec is compatible with 2.0, 3.0, and 3.1. PD spec is capable of delivering 20V @ 5A (100W).

Check the specs:

Wiki:

Full-featured USB Type-C cables are active, electronically marked cables that contain a chip with an ID function based on the configuration data channel and vendor-defined messages (VDMs) from the USB Power Delivery 2.0 specification. USB Type-C devices also support power currents of 1.5 A and 3.0 A over the 5 V power bus in addition to baseline 900 mA; devices can either negotiate increased USB current through the configuration line, or they can support the full Power Delivery specification using both BMC-coded configuration line and legacy BFSK-coded VBUS line.

 

[destrekor]

Check the specs:

Wiki:

Ah, my bad, I got confused on what exactly we were discussing.

Google's thing is apparently just a Type-C specific spec.

But what that shows is that will still be slower if you are connected to a computer or another device as it is then connected as a USB device and not just to a Type-C charger.

So Type-C, due to its new pin-out, can handle more raw power in battery-charge applications compared to previous USB cables, it's still just a raw cable connection as opposed to utilizing PD spec (which would require a more expensive cable, and I'm assuming additional circuitry in the device itself).