In 1996 the USB 1.0 standard was introduced with a maximum data rate of 12 Mbit/s. In 2000 the USB 2.0 standard was specified with a data rate of 480 Mbps. This is still the most common version of USB in use (as of writing). In November 2008, the USB Implementers Forum introduced the specification for USB 3.0. In SuperSpeed mode, a maximum data rate of 5 Gbit/s is achieved with USB 3.0.
Then in 2014 the standard USB 3.1 Gen 2 was introduced, which had a maximum data transfer rate for SuperSpeed reads of +10 Gbit/s.
Currently, USB takes three steps in, putting a whole range of other interfaces at risk.
So far, the USB "ailed" the following:
However, the USB Implementers Forum has offered solutions for these problems, not only as complete package, but also independently with specifications USB 3.1 / UBS Type C/PD. The new USB standards do not only provide higher data transfer rates (USB 3.1 Gen 2) and faster charging times (power delivery), but also a new connector type (USB Type C). Specifically, the USB Implementers Forum has spread the innovations to 3 different specifications, which can overlap as well as complement each other, but still remain independent.
USB 3.1 Gen 2 defines SuperSpeedPlus with double speed to 10 Gbit/s compared to USB 3.0.
USB Type-C "Cable and Connector Specification" describes the mateable, twist-proof plug - which also supports power delivery as well as USB 3.1 - offering many additional contacts and alternative functions.
An advantage of the type C plug connection is, among other things, the low overall height, and small width of the socket of 8.4 mm.
USB A => 12.1 mm x 4.7 mm
USB C => 8.4 mm x 2.5 mm (width x height)
The plug type is no guarantor for high performance. USB-C and USB 3.1 have been introduced together, but do not necessarily belong together. There are devices with Type C connectors that only support USB 2.0. There are also devices that are compatible with USB 3.1 but use conventional USB A connectors. While the new connectors will continue to enjoy growing popularity, the performance and transmission rate will depend on the technology the device that they need to support.
USB Power Delivery (PD) regulates the supply of up to 5 A at up to 20 V – i.e. 100 W max.
Up till recently the upper limit was 4.5 watts (5 V = / 900 mA / USB 3.0) or 7.5 watts (5 V = / 1500 mA / USB battery charging USB-BC).
PD: The application communicates/interacts with the power supply. The voltage/current required by the application is provided by the power supply.
FRIWO is already waiting in the wings to adopt the new USB standards USB 3.1/USB Type C/USB power delivery at an early stage in order to meet the requirements of the future. In the second quarter of 2017, FRIWO will be able to provide a demonstrator which observes and meets the new USB standards.