Tag: USB 3.2

Article

A sure-fire logo-driven certification program to come from USB to permit safe fast charging of laptops and smartphones with USB-C connectors

USB about to get better at charging laptops and phones fast | CNet

From the horse’s mouth

USB Implementers Forum

Press Release via BusinessWire

My Comments

The USB Implementers Forum are working on a project to achieve a reference design for USB battery chargers and power supplies in order to support fast charging or stronger power output.

The logo to look for

It is an extension of the initial USB Battery Charger specifications used for just about every smartphone charger but is extended to encompass USB Power Delivery which is being used to provide power to laptops. The goal is to be able to use USB PD chargers on all USB-C devices that support this power-intake path thus reducing e-waste and creating room for innovation when it comes to designing USB-based charging devices.

Here, it is based on the USB Power Delivery 3.0 standard but makes heavy use of the Programmable Power Supply function that is part of that standard. It allows for backward compatibility with existing USB devices that honour prior versions of that standard.

The idea of a Certified USB Fast Battery Charger as a logo-based certification program has been brought about due to the existence of poor-quality USB chargers and cables sold online or through a myriad of stories that are placing our devices at risk of being damaged. Here, it also allows customers to quickly identify power-source devices that will properly and safely provide the high current throughput in a vendor-independent manner, in a similar approach to how the Dolby symbol allowed us to identify the fact that a cassette player was able to play pre-recorded cassette tapes at the best quality or our favourite film was prepared with surround sound.

One of the desires also being raised in this certification process is the ability for host devices to implement authentication of cables and other devices and use this as a machine-level manner for verifying devices.  The device-authentication feature is a goal that the USB Implementers Forum are intending to implement by this year’s end and is also appealing towards verifying that USB devices are what they say they are so as to protect against USB-borne computer attacks.

What is being achieved by the USB Implementers Forum is that there is a goal to permit fast charging of smartphones and laptops in a safe manner without having to be tied to a particular vendor’s accessories.

Article

USB 3.2 to use the same USB Type-C connector as USB 3.1, but with increased throughput

USB-C is already getting a major update, and it will double data transfer speeds | Mashable

My Comments

The USB connection has been recently revised once more, but this time it is about increased bandwidth.

This standard emerges in the form of the USB 3.2 which allows for bandwidths of at least 15Gb/s thanks to the use of multi-lane technology.

It uses the same physical connection standards as USB 3.1, which means that devices equipped to this standard will use USB-C connections and you can connect your compliant host devices to your compliant peripherals using USB-C cables. But this system will work on a “best-case” approach where if both the host and peripheral device are USB 3.2 compliant, you will benefit from the higher throughput whereas in other cases, the link will step back to USB 3.1 specifications.

Once the standard is set in stone, you may find that some devices such as some computer USB interface chipsets may support in-field software-based upgrading for this standard. On the other hand, a subsequent generation of computer and peripheral equipment will end up being equipped for this standard.

The main applications I see this connection come in to its own would be high-capacity external storage applications or high-resolution display setups. But of course, there will be the USB hubs and docks (expansion modules) that are about increased connectivity being equipped with this connection type.

Personally, I would see USB 3.2 become a “next-generation” approach for USB-based peripheral and device connectivity, something to look forward with subsequent generations of computer equipment.