What is feeding standard USB Power Delivery using Universal Serial Bus port?
It is often found recently to use Universal Serial Bus port in Charge such as smartphone or tablet. Meanwhile, new USB feeding standard called "USB Power Delivery" (USB power delivery) came up.
What kind of structure is USB Power Delivery? In addition, we comment on merit using USB Power Delivery.
Power supply that is strong in USB Power Delivery is possible
We were able to supply power supply from Universal Serial Bus port until now when we charged small digital gadgets such as smartphone or tablet. However, in standard called "USB BC" (Battery Charging), I had electricity (wattage) that we could supply only of up to 7.5W.
In USB Power Delivery, power supply to 100W was enabled, and environment that could charge digital gadgets such as tablet or smartphone in fast time was set.
Role and type of USB standard
At first, we will easily refer to USB before commenting on USB Power Delivery in detail.
USB is standard to connect peripheral devices such as printer or mouse to PC by abbreviation of universal serial bus (Universal Serial Bus). Shapes of port and connector were different, but by unifying in USB standard, came to be able to connect various apparatuses to one port for each apparatus connected to PC before. In addition, even if PC is switched on, exclusion and adding of cable is possible, and it is big advantage that USB standard brought that can get electricity of connected apparatus from PC.
USB includes plural standards, and shapes are different, too. "Micro-USB" used for sumahotofon of "USB Type-B" of standard that it is often used "USB Type-A" of standard standard to connect keyboard or mouse to PC for with large peripheral devices such as printer and Android exists.
Meanwhile, it is new standard called "USB Type-C" that appeared in 2014. As connector part becomes the front and back symmetry in USB Type-C after being able to transfer a large quantity of data at high speed, it features to be able to insert without minding top and bottom.
Merit of USB Power Delivery
USB Power Delivery introducing this time is feeding standard corresponding to USB Type-C which mentioned above, and supply capability more largely than past standard increases.
Here, we will explain merit of USB Power Delivery.
Increase of target apparatus and shortening of charge time are possible by power supply of 1 up to 100W
Birth of standard called USB Power Delivery made possible to supply very big electricity of up to 100W. It can supply electricity of about 20 times how big it is when, for example, we think about electricity of conventional standard portable power charger and battery charger being around 5W. In this way, power supply to apparatus which needed big electricity including note PC and liquid crystal display was enabled.
In addition, as well as power supply, signal line called "CC" was in USB Type-C and exchanged information about Power Delivery in both sides when apparatus was connected to USB Power Delivery correspondence battery charger and as electricity of fast charging that was most suitable on the battery charger side was chosen, came to be able to shorten time.
2 AC Adapter commonizes
As apparatuses such as note PC or smartphone, liquid crystal display vary in shape of Voltage and terminal each, AC Adapter to use is different. However, Charge to apparatus which is different in the same AC Adapter is possible as we can supply 5V, 9V, 15V, electricity corresponding to four Voltage of 20V from USB Type-C terminal in USB Power Delivery. In this way, we can reduce the number of AC Adapter.
But we will confirm properly beforehand whether it can supply electricity that is necessary for Charge as wattage that can feed varies according to cables to use as well as AC Adapter.
It supports all apparatuses with cable of 3 one, and there is not distinction between top and bottom, too
Many types including "Mini B" "Micro B" were mixed, and different cable assembly was necessary for USB Type-B connector in conformity to apparatus. However, connection is possible to all apparatuses with one cable as USB Type-C is unified in one shape.
In this way, it is big merit that it is not necessary to carry plural cables for at the time of going out. In addition, we do not have to worry to come in, and to get a wrong as connector of USB Type-C does not have distinction of top and bottom.
As it is available, we can commonize cable without distinction between 4 hosts side and device side
General connecting in different connector so that the host side called USB Type-A, the device side USB Type-B before. It may be said that this cannot but adopt different connector from Dimensions of device, but original intention is to prevent you from performing one way and direction of power supply that it is by mistake. Therefore there was fault to have to prepare cable for each peripheral device to connect.
As bidirection can supply cable of USB Type-C corresponding to USB Power Delivery, on the host side and the device side, we can use the same USB Type-C terminal. In this way, interconnect equipment to use USB Type-C for can use the same cable.
Let's build comfortable environment in USB Power Delivery
There are various merits including large-capacity power supply in USB Power Delivery.
You confirm whether devices such as PC or smartphone owning support USB Power Delivery standard of USB Type-C, and please make use for comfortable environment construction including fast charging and joint ownership of AC Adapter.