[Preface]
realizes the "unification" of interfaces. This is the mission that Type-C has shouldered since its birth in 2014. However, after all, traditional interfaces have been popularized for many years, and there is still a considerable inventory of equipment on the market. It has not been widely promoted for a long time. This disappoints many users who are looking forward to the unification of interfaces.
But the trend of long-term separation will be together has not ended. In the past two years, driven by terminal manufacturers such as Apple and Huawei, the number of devices with Type-C interfaces has grown like mushrooms after a rain, and their functions are becoming increasingly rich - integrating data transmission, charging, and audio-visual transmission. It seems that the day when we get rid of all kinds of messy interfaces and cables is getting closer and closer.
However, although all types of devices are equipped with the Type-C interface of the same shape, their support for their functions may be different, which means that we will no longer be able to distinguish their functions at a glance through the shape of the interface. Therefore, the current Type-C looks simplified and convenient, but the learning cost for users has increased. I often have friends around me when purchasing Type-C-related accessories and cables. Therefore, this series of articles will answer 10 common questions related to Type-C, helping everyone to understand this interface more clearly and comprehensively and be able to use it for their own use.
Q1: Why can Type-C unify all interfaces?
Type-c is also called USB-C, which is one of the USB interfaces, but it has the following advantages over other traditional USB interfaces:
① It is smaller in size and easier to install on some ultra-thin devices;
② It has a symmetrical front and back design, and supports blind plugging;
③ Bidirectional power transmission (Type-A can only supply power to the outside, Micro-B can only transmit power inward);
④ The formulation organization of USB interface--"USB-IF" has specially formulated a USB-PD fast charging protocol for Type-C, so that it supports up to 100W of power transmission.
⑤ The association that formulates display standards - "VESA" provides support for the DP protocol, so that the Type-C interface can also have the function of directly connecting to the display and outputting video signals.
⑥ Intel launched the "Thunderbolt3" standard based on Type-C, increasing its transmission rate to 40Gb/s, 8 times that of the common USB3.0.
and above features make Type-C combine many functions and conveniences, becoming the best choice for future interfaces.
Q2: My phone is charging with Type-C, and Type-C on the laptop must be OK, right?
The answer is no. Type-C can be used as a charging port, but it does not mean that all Type-C can be charged. Due to limited interface space for mobile phones, charging and data transmission must be integrated into USB ports. However, many laptops retain traditional round hole charging for cost considerations. Here we have compiled the Type-C charging support status of the latest laptop models for the current latest laptop models (green is supported, red is not supported):
Even if we only list the latest models launched this year, we can see that Type-C charging is not fully popular in the notebook industry at present. In this regard, emerging manufacturers such as Huawei are taking a step faster than traditional PC manufacturers, and even their own entry-level laptops are equipped with a Type-C charging port and portable adapter standard. On the other hand, the official description of Type-C function of the promotional pages of some traditional manufacturers has been emphasizing the forward and reverse plug-ins and USB3.1 for several years, but it lacks exploration and attention to its greater value.
Q3: My laptop supports Type-C charging, can I share the charger with my phone?
Although most laptops that support Type-C charging have a charging head equipped with 65W power, and with the development of fast charging technology, many mobile phones have reached or even exceeded this power, but they are not necessarily universal, because it also involves the issue of fast charging protocol.
is different from a computer. It is a smaller device and more sensitive to heat generation. Blindly increasing the charging power will bring serious heat generation problems. Therefore, various mobile phone manufacturers used various methods to reduce the heat generated during high-power charging, thus resulting in different dedicated charging heads and private charging protocols.A charging head can be compatible with multiple charging protocols at the same time, but if it does not match the device's protocol, it will not trigger fast charging, or even charge, so it is important to recognize the protocol.
Laptops that support Type-C charging use the common protocol-PD protocol formulated by USB-IF organization. The charging head and the device are generally connected by a double-head Type-C data cable. For example, 65W super flash charging output from port A to port C is a private protocol and cannot charge the computer. Of course, there are exceptions. For example, in order to be compatible with their own laptops, Xiaomi 9Pro, Xiaomi 10 series, etc. have forced a magical modification to the A to C charging head that can support PD charging.
Currently, most mobile phones with a price of more than 2,000 yuan will be compatible with the PD protocol. By purchasing the charging head and mobile power supply of this protocol, you can achieve universality between mobile phones and computers (the power must be above 45W). But it should be noted that even if your charging head itself is large enough, it cannot reach the speed of the private protocol when charging the mobile phone. It is generally only about 18-22W, and the fundamental reason is still the heat. Therefore, magically modified charging heads like Xiaomi are currently very advantageous, supporting the private protocol of the mobile phone and compatible with laptop PD charging.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
