Mobile phone / Notebook Charger head / charger Selection Guide
There are more and more electronic products in hand, such as laptops, mobile phones, e-books, game machines, etc. As most devices can support fast charging, if the traditional charging head is still used, not only the charging efficiency can not be improved, but also it is large and heavy, which can not meet the demand of charging multiple devices at the same time.
If you just buy a charging head for the iPhone 12, you can choose a smaller one. Single port, small size, easy to carry. It is recommended to choose Anker's pd20w, the top selling product of double 11 in 2020.
If you need to provide fast charging for multiple devices at the same time to meet the demand of notebook, mobile phone and other fast charging at the same time, it is recommended to choose gallium nitride charging head, which is small in size and high in charging power. Now many brands of mobile phone charger are also gallium nitride chargers, which can greatly reduce the size and weight of the charger while meeting the demand of device charging
For some mobile phones, there is a private fast charging protocol. In order to achieve fast charging, the mobile phone needs its own charger and data cable. Data line is also an important factor to realize fast charging. Ordinary data line can not realize fast charging because of its limited current.
The charger we are using now belongs to switch charger. The principle is as follows.
Principle Comparison between linear charger and switch charger
This kind of charger is used by ancient linear chargers and mobile phones in history. It is large and heavy, and its output voltage and current are very low. Schematic diagram of linear charger
After using the switch charger, the charger began to become smaller and more powerful.
Fast charging technology
Please take a look at the following personal original technology map
Fast charging technology supported by different manufacturers
Different manufacturers support different charging protocols. As long as the charging head supports the corresponding fast charging protocol and the matching charging cable, the fast charging supported by the mobile phone can be realized normally.
Gan Gan charging head
Gan is a new type of semiconductor material with wide band gap, high thermal conductivity, high temperature resistance, radiation resistance, acid and alkali resistance, high strength and high hardness. It was widely used in new energy vehicles, rail transit, smart grid, semi-conductor lighting and new generation mobile communication in the early stage, and is known as the third generation semiconductor material. With technology breakthrough and cost control, Gan is also widely used in consumer electronics and other fields, and charger is one of them. The charger using Gan components has the characteristics of high efficiency, low heating, high power but small volume.
Gan charging is characterized by small size, light weight and high power.
Principle of Gan charging
Comparison of GaN and traditional charging
Choose the general Gan charging head, try to choose the multi port charging head, which can charge the notebook, mobile phone and other devices at the same time. Although charging at the same time, it can not realize the fast charging of all connected devices, but it can save the total time of charging at the same time.
At present, the cost of Gan chargers is still relatively high. Notebook manufacturers have not given them away at random. Xiaomi 11 has begun to give away Gan chargers, and apple has begun to enter the Gan market. In the future, more high-quality and low-cost Gan chargers will appear in large numbers.
Charging head for iPhone 12
Anker Anker 20W charging head
Anke is a well-known manufacturer of charging head. Before, it only had to do overseas market. And Apple's partner.
This charger is a popular product of ANC. It has the same volume as Apple's traditional Wufu Yian charger, but it has achieved 20W charging power. It uses Apple's original chip and supports all models of fast charging after iPhone 8. It supports pd3.0 and qc3.0, and can realize fast charging for some models such as Xiaomi, Huawei, Samsung and oppo.
Yise 20W charging head
It supports 20W fast charging and models after iPhone 8, but the materials are not as good as ANC, which is a cost-effective choice.
Kunxing ODM scheme 65W 2c1a charging head
Kunxing ODM solutions are widely used in the market, such as 360 Gan, biyaz Gan, Nubia Gan and magic fox Gan. Kunxing charging head has a feature, that is, the arrangement of USB is as follows: 2 C ports, 1 a port.
Gan charger based on kunxing ODM
The main Gan charging head of this scheme is used
Bess launched the first 2C + 1A charging head in 2019 and won the championship of double 11 in 19 years. Beisi 65W Gan 2 Pro charger, as the second generation of Beisi 65W multi port Gan product, adopts family ID design in appearance, and has been redesigned both inside and outside. It is small in size, equipped with new heat dissipation process and bpsii charging technology, and the size is further reduced. The volume is 5mm shorter than the previous generation. There are also Lite versions, 1c + 1a, with lower prices.
Supported fast charging protocols:
Usb-c1 / C2: apple2.4a, qc2.0, qc3.0, qc4.0 +, AFC, FCP, SCP, PE and pd3.0
Usb-a: apple2.4a, qc2.0, qc3.0, AFC, FCP, SCP and PE
PDO: 5V 3a, 9V 3a, 12V 3a, 15V 3a and 20V 3.25a five fixed voltage gears, in addition to support a group of PPS fast charging: 3.3-11v 5A.
Girth: 70mm * 36mm * 32mm
Madox 65W Gan charger 2C + 1A
McDull is also a popular charger, the biggest feature is the lowest price is 58 yuan, cost-effective.
Rectangular, folding plug design. Rich charging standards
Fast charging protocol:
Usb-a: supports apple2.4a, qc2.0, qc3.0, AFC, FCP and SCP fast charging protocols.
Usb-c1: supports apple2.4a, qc2.0, qc3.0, AFC, FCP, SCP and pd3.0 fast charging protocols.
Usb-c2: support apple2.4a, qc2.0, qc3.0, AFC and other fast charging protocols.
Usb-c1 output: support 5V 3a, 9V 3a, 12V 3a, 15V 3a and 20V 3.25a five fixed voltage gear, in addition to support a group of PPS fast charge: 3.3-21v 3a.
Usb-c2 output: support 5V 3a, 9V 3a, 12V 2.5A, 15V 2a and 20V 1.5A five fixed voltage gears, in addition to support two groups of PPS fast charging: 3.3-11v 3a and 3.3-16v 2A.
Girth: 70.12mm x 37.31mm x 32.08mm
Volume: 84.03cm ³ Weight: 121g
Millet Gan charging head
It supports the maximum power of 65W, and can quickly charge laptops, Xiaomi mobile phones, apple mobile phones, etc. in the package, there is also a 1m long 5A data line equipped with e-marker chip to ensure the realization of high-power fast charging.
The pin can't be folded, there is only one C port.
Fast charging data line
Because fast charging requires more charging current, you need to choose a 5A charging cable or purchase a set of charging head and data cable. The best choice is the data line equipped with e-marker chip. Only the data line equipped with e-marker chip can support the current above 5A and realize the fast charging above 65W. That is, you can charge your laptop.
Notebook charging choose double C port cable, mobile phone charging choose a port cable. Or choose 3-in-1 fast charging line.