Nowadays, not only have many mobile phones' charging ports been replaced with Type-C ports, but computers and USB flash drives are also popularizing Type-C ports. Compared with the previous situation where various ports coexisted, and the embarrassment of looking for a suitable charging cable when the mobile phone or computer ran out of power, the unified port is so user-friendly!
Why do people like Type-C interfaces so much? The most common perception of Type-C interfaces is that they do not need to distinguish between the front and back sides, and charging is faster. After all, who can resist the efficiency of "charging for five minutes and talking for two hours"?
So, why does the Type-C interface not distinguish between the front and back? Can it really make charging faster?
Next, let's take a closer look at Type-C.
Type-C interface charges faster?
Type-C is an electronic device interface standard, also known as USB-C. In August 2014, USBIF (USB Implementers Forum, USB Standardization Organization) released the USB Type-C interface standard. It has also relied on its own technical advantages and has gradually developed into a unified electronic interface.
Why is Type-C so widely used? In fact, this is mainly because the Type-C interface standard is an extremely important part of fast charging technology.
With the development of network technology, mobile phones are increasingly dependent on the network. The faster the network speed, the more problems the mobile phone needs to deal with in the same period of time, and the greater the power consumption. At present, in order to reduce the power consumption of mobile phones, we can start from two aspects, one is the update of mobile phone batteries, and the other is charging technology.
However, there has been no new breakthrough in the mobile phone battery market technology. If we want to change the problem of fast power consumption of mobile phones, it is particularly important to develop fast charging technology.
At present, there are two common fast charging technologies: one is to increase the output voltage of the power adapter (power supply conversion equipment for electronic appliances, commonly known as the charger head) to increase the charging power to achieve fast charging; the other is to output a large current through the charger head to increase the charging power to achieve fast charging.
In recent years, domestic mobile phones using low-voltage fast charging technology have developed rapidly, and low-voltage fast charging technology has gradually occupied the market. Compared with the two charging methods, the low-voltage and high-current charging method can achieve higher efficiency at the same power. However, traditional cables (charging cables) and interfaces cannot withstand high currents and cannot guarantee charging safety.
In order to achieve fast charging while ensuring charging safety, the fast charging charger head needs to convert the AC power in our lives into the specified voltage and current. At the same time, voltage and current transmission also requires the use of special fast charging cables and interfaces.
The number of contacts of the Type-C interface is several times that of the traditional interface, which makes it able to withstand much more current than the traditional charging interface, and is more suitable for fast charging technology. In addition, the chip of the Type-C interface has added an E-marker chip that can recognize each other, ensuring that the Type-C interface can automatically identify the charging and receiving devices, ensuring charging safety, and supporting two-way charging.
Currently, USBPD (USB Power Delivery) is not unified. It is compatible with different charging voltages of 5V/12V/20V and different charging currents of 1.5A/2A/3A/5A. USBPD sets five-level charging specifications of 10W/18W/36W/60W/100W. The increase in charging power requires higher requirements for interface chip security. The Type-C interface with USBPD can fully achieve a maximum charging power of 100W, ensuring the safety of charging under high voltage and high current output.
So if you want your phone to charge quickly, the Type-C interface standard alone can't do it, but it is an important part of fast charging technology.
In addition, what are the advantages of the Type-C interface?
Advantages of Type-C interface
No directionality
The Type-C interface has all signal pins designed on the middle "tongue", with 12 pins on both sides, and the arrangement is basically symmetrical, which means that it no longer needs to distinguish between the front and the back.
Realize the full function of the data cable
The Type-C interface can support the transmission of data, audio, video and charging functions at the same time, realizing one cable to replace multiple cables. You no longer need multiple data cables with different functions, and realize the full function of the data cable.
Powerful data transmission capability
The Type-C interface not only supports bidirectional charging, but also supports bidirectional data transmission. It can also support multi-screen display and 4K ultra-clear resolution transmission. Nowadays, most electronic devices have only one interface, and the Type-C interface enables video transmission, which greatly improves the convenience of using electronic devices.
Small size
In fact, the Type-C interface has been used in laptops for a long time, which can save about 2/3 of the space for laptops.
Nowadays, mobile phone design has always been pursuing thinner, and the 3.5mm audio interface has become one of the bottlenecks for mobile phone thinning. In addition, the pursuit of digital high-definition audio in the market is getting higher and higher, and the traditional 3.5mm audio interface can no longer meet the demand. The Type-C interface is not only smaller than the traditional audio interface, but it can also realize the digital audio interface. This also speeds up the elimination of the 3.5mm traditional audio interface.
Extended service life
Durability is an important aspect of testing interfaces. The Type-C interface directly solves the problem of interface wear caused by users plugging the interface in reverse, extending the service life of the interface. Its interface uses a symmetrical arc appearance, and the stress-bearing part is mainly in the metal shell, which improves the protection of the intermediate data channel and reduces the damage to the data channel caused by plugging and unplugging the interface.
As an important transmission link of fast charging technology, the Type-C interface not only realizes fast charging, but also provides people with a lot of convenience. For example, there is no need to worry about plugging the interface in the wrong direction or looking for various adapter interfaces. Therefore, it is not unreasonable that the Type-C interface has become popular so quickly.