Vivo Fung 65W gallium nitride quick charge disassembly, built-in gallium nitride devices in the future

2021-08-05

Gallium nitride technology has been gradually recognized by the market after its market promotion in the field of fast charging in recent years. From 30W to 120W, gallium nitride fast charging scheme has a large number of mass production cases, and the technology is becoming more and more mature. With the opportunity of the outbreak of the fast charging market, the domestic gallium nitride industry has also ushered in a stage of rapid development.

Gallium, as a young gallium nitride power device company in the future, through the advantages of high starting point and strong team, launched gallium nitride power devices less than a year after its establishment, realizing the localization of Gan technology. Today, what the charging head network wants to share with you is a mass-produced 65W gallium nitride fast charging charger with built-in ganext gallium future power device. This product is produced by Shenzhen longbowang Technology Co., Ltd. and the brand is weiwofeng.

Vevofeng 65W 2c1a gallium nitride fast charging charger adopts the mainstream interface configuration in the industry, which can charge three devices at the same time, and ensure that the usb-c1 port has the ability of 45W power supply. Both usb-c interfaces support 65W output in single port mode. When charging high-power devices such as laptops, you don't need to pay special attention to the choice of interfaces.

After the disassembly and analysis of the charging head network, it is learned that this gallium nitride fast charging product adopts the most mainstream QR quasi resonant flyback power supply architecture. The AC-DC switching power supply adopts Ansenmei ncp1342 master control + Xinmao micro lp35118v control scheme. The gallium nitride power devices are from the domestic emerging brand ganext gallium future, and the synchronous rectifier MOS is from new power.

After AC-DC outputs fixed voltage, the power intelligent output of three interfaces is realized through secondary step-down circuit. The secondary step-down adopts Zhirong sw3516h, which is also a star scheme in the field of multi port fast charging. It not only has high integration, simple periphery, but also supports a wide range of protocols. The two chips can communicate with each other, and only one MCU can realize multi port intelligent output.