What is the difference between Gan Gan PD charger and ordinary charger? Review of mainstream PD charger

Since the iPhone 8 began to support PD fast charging, major manufacturers have accelerated the pace of research and development of PD chargers, ushering in the era of universal common PD charging in 2019. Why ordinary PD charging? This is because the vast majority of PD chargers in the market are using common charging schemes. Although the price is low, there are also many problems: high calorific value, poor heat dissipation effect, large volume of high-power chargers and so on. At that time, some brands on the market launched PD chargers with updated Gan technology. Most of these chargers are single port design, with power of about 18W. Few of them are multi port design. The key is that the price is really expensive!

How to choose PD charger in 2020? Gan technology is definitely the first choice to support, because Gan technology is quite mature and the price has dropped a lot. At the same time, there are more high-power chargers that support multi port use. This time, we share zenture zhengtuo's 65W charger using Gan Technology: superport S3

In particular, the shared superport S3 charger is an engineering version, so it does not represent the product packaging and performance at the time of final launch.

Zenture superport S3 65W three port PD charger
Size: 66 * 41 * 29mm;
Net weight: 120g;
Input: 100 - 240V, 50 - 60Hz;
Output:
USB-C1/C2:5V/3A、9V/3A、12V/2.5A、15V/3A、20V/3.25A,65W MAX;
USB-A:4.5V/5A、5V/4.5A、9V/3A、12V/2.5A、20V/1.5A,30W MAX;

Zenture is one of the most popular outdoor travel charging products in Europe and the United States. It also focuses on high-end performance. At the same time, the modeling is basically a series of appearance, much like the aluminum trunk modeling, focusing on domestic brands!

In the figure above, in addition to the superport S3, there are Zimi 65W three port charger, Beisi 30W two port charger and Anker 30W single port charger. These are the portable chargers I usually use, because they all support foot folding and have high power. After comparing their appearance with the superport S3, I really didn't expect that the 65W superport S3 could be so small. Maybe the PD chargers I used to contact were relatively large, which made me subconsciously feel that the PD charger is a big one, especially the one with high power and multi port support. Why is there such a big gap between them? Of course, it depends on GaN technology


Gan (gallium nitride): it is a new type of semiconductor material for the development of microelectronic devices and optoelectronic devices. It has wide direct band gap, strong atomic bond, high thermal conductivity, low heat generation rate, good chemical stability (almost not corroded by any acid) and strong radiation resistance. It is used in high-power and high-speed optoelectronic devices, and is widely used in new energy vehicles and rails in the early stage Road transportation, smart grid, semiconductor lighting, new generation mobile communication. With the technology breakthrough and cost control, Gan is also widely used in consumer electronics and other fields, and charger is one of them.

The superport S3 in my hand is white. The government has launched the black-and-white color matching this time. Basically, these two kinds of color matching are evergreen colors in electronic devices. However, I still hope zenture can launch a variety of color matching options. SuperPort S3 is still using the classic "suitcase" line shape, the shell is divided into two sections, the line section is matte surface, near the pin section is bright surface, this design is good-looking, but the bright surface part of daily use is relatively easy to rub and scratch, I have a little scratch on this one, but in order to coordinate the aesthetic feeling, this process design can be ignored, of course I still hope zenture can make an improvement plan to reduce scratches in the later stage of zhengtuo. The white one is not so obvious as the black one. In addition to changing the plane appearance design of the traditional homogeneous charger, the concave convex feeling of the lines can increase the holding feeling of the plug charger.

There is a soft and non dazzling white warm light indicator at zenture logo in the upper right corner of the front of superport S3. When it is powered on, the indicator will be on, indicating that it works normally. Some chargers don't have indicator lights. The superport S3 is a three port charger. You can see that there are different device icons on the two usb-c interfaces to facilitate charging S3's two usb-c interfaces are dual port 65W blind plug-in design. No matter which usb-c interface is plugged in, it is 65W. Therefore, its different device icons are only used as convenience marks, rather than usb-c interfaces with different power specified by some brands of multi port chargers. Blind plug-in design reflects convenience in use, and charging does not need to deliberately select the specified high-power interface. The optimization in this place is highly praised. The addition of blind plug 65W reduces the learning cost of users and improves the user experience. In order to not know whether it works normally after power on, we can only see whether the charging icon appears on the device screen; some chargers have indicator lights, but they will be more dazzling after power on, which is why the design of the indicator light of superport S3 is considered in the side, not the USB interface, mainly to avoid the plug-in socket and directly see the indicator light.

Charger appearance is basically horizontal design or vertical design. Many horizontal design chargers are often used on the conventional patch panel, which will hinder the normal insertion of the left and right sockets. Superport S3 adopts vertical design, which will not affect the insertion of other sockets on the patch panel.
If multiple ports charge at the same time, there will be shunt. The above is the three port charging distribution diagram.
"Single port use": usb-c1 and C2 can reach a maximum of 65W; usb-a can reach 30W.
In the case of dual port use, there are three cases: when usb-c1 + C2 is used at the same time, C1 provides 45W, C2 provides 18W, and the total output is 63w; when usb-c1 + usb-a is used at the same time, C1 provides 45W, usb-a provides 18W, and the total output is 63w; when usb-c2 + usb-a is used at the same time, C2 and usb-a only provide small current mode, the maximum 5V / 3a, and the total output is only 15W.
"Three port use": usb-c1 provides 45W, C2 and usb-a only provide small current mode, maximum 5V / 3a, total output 63w.
At present, the mainstream devices supporting high-power PD charging are mainly notebook computers such as MacBook, matebook and Dell XPS, which basically use 65W PD charging. With the development of digital devices, there are almost one mobile phone, tablet and notebook, and some of them have more than one. The biggest problem with so many digital devices is charging. Every product has a charger of different sizes, and many of them are not compatible. It is necessary to popularize 65W PD charging in 2020. When choosing a multi port charger, you need not only high power, but also the rich charging protocols it supports. Many chargers in the market don't tell users what charging protocols they support, but how much w they are. However, when you buy them back, you find that although the device in hand supports fast charging, the high-power charger doesn't support fast charging protocols, especially opp O and vivo's private fast charging protocol.

Use yzxstudio USB voltage and current meter to test the charging protocol of usb-c and usb-a interface of superport S3. The charging protocols supported by usb-c interface are: pd2.0 60W (3.0A), pd3.0 63w (3.3 ~ 21V), apple 5V / 2.4a, Samsung 5V / 2a, bc1.2, qc3.0 (5V / 9V / 12V / 20V), qc4, Samsung AFC (5V / 9V / 12V 25W), Huawei FCP (5V / 9V / 12V 24W), SCP 25W (3.4 ~ 5.5V 5.0A). Six fast charging voltages and currents are detected, which are 5V / 3.0A, 9V / 3.0A, 12V / 3.0A, 15V / 3.0A, 20V / 3.25a and 3.30 ~ 21V / 3.0A.

The charging protocols supported by usb-a interface are: Apple 5V / 2.4a, Samsung 5V / 2a, bc1.2, qc3.0 (5V / 9V / 12V / 20V), Samsung AFC (5V / 9V / 12V 25W), Huawei FCP (5V / 9V / 12V 24W), SCP 25W (3.4 ~ 5.5V 5.0A).


After measuring the meter, we can see how comprehensive the superport S3 is. In addition to the advantages of Gan technology in terms of size and weight, it supports qc4 +, USB PD 3.0 PPS, AFC, FCP, SCP and other mainstream charging protocols. It can be said that the superport S3 is indeed a "small steel gun" charger with high cost performance. In particular, it supports Huawei SCP 5A high current, PPS 5A (Xiaomi turbo charge 27W) and Meizu PE 1.0 / 2.0, because some chargers used in the past are compatible with many protocols, but PPS 5A is not supported. It can only support 3a. PPS up to 5A is rare on the market, and it supports Blackshark 350W fast charging. Generally, new mobile phones support fast charging protocols, such as apple, Samsung, Huawei / glory, Xiaomi, nut, Meizu, Red Devils and black shark. Besides PD and PPS, chargers also support qc2.0 and qc3.0, which also supports old devices.

Superport S3 uses folding pins. This design is very practical, especially for office workers and students. Because they need to carry laptops frequently in their work and study, the charger is also one of the items they carry. After the charger with folding pins is put into the bag, there is no need to worry that the pins will scratch other items in the bag. The detailed parameter name plate of this charger is also attached on the superport S3 plug, mainly including three port charging distribution parameters.
Test with iPhone 11 Pro Max and 4 chargers: superport S3 65W charger, Zimi 65W three port charger, Beisi 30W two port charger and Anker 30W single port charger. During the experiment, the mobile phone started charging at 20% low power, charging for 30 minutes, recording the charging rate and temperature every 5 minutes.
Here's a charging experience. Many small partners usually start charging at the lowest battery level of their mobile phones. They are always worried that frequent charging will have a bad effect on the battery life. In fact, they don't need to deliberately lower the battery to recharge. On the contrary, it will shorten the battery life. It's recommended to charge them at will, even if about 80% of the battery is charged by the charger.
The charging efficiency and temperature of each charger can be seen from the above figure drawn by the test data. In the figure, except for the superport S3 which uses Gan technology, the other three chargers are ordinary chargers. Obviously, in the data figure, the chargers using Gan technology have obvious advantages: fast charging and low heating.
Gan is a new type of semiconductor material. Besides its small size and light weight, it is several times better than ordinary chargers in terms of calorific value and efficiency conversion. Although the charging speed of ordinary high-power fast charging chargers is fast, the biggest problem is that they are easy to get hot. Once they get hot, the efficiency of electric heating conversion will be reduced, resulting in continuous charging The electricity slows down.
The early Gan chargers were all low-power about 18W. Although Gan technology reduced the calorific value, the later Gan chargers were all high-power. The calorific value of Gan chargers was also quite large, but it was not as hot as ordinary chargers. Now the high-power Gan chargers have also done "cooling treatment", which is generally surrounded by silica gel or metal fins with good heat dissipation. The evaluation of superport S3 also uses the injection of heat dissipating silica gel to improve the heat dissipation performance, but it is injected with the industry's first space silicon as a glue filling material, which is also a kind of heat dissipating silica gel. It can quickly and evenly export the heat of the internal circuit board to the outer surface of the shell, and then disperse it to the air, effectively reducing the heating temperature.

Usb-c single port use, charging iPhone 11 Pro max, real-time reading efficiency: 9.08v/2.54a/23.10w, successfully identify PD charging protocol. The iPhone 11 series already supports about 24W charging, so it's faster than using an 18W PD charger.