Shift Speed has launched a 140W PD31 gallium nitride fast charging, this charger has 3C1A interface, of which the USB-C1 interface supports 140W output, the USB-C2 interface supports 100W output, USB-C3 and USB-A interface also supports fast charging, and supports automatic power distribution, a single charger can meet the needs of laptops, Apple mobile phones and other devices at the same time. The charger comes in two striking Phantom Green and Lava Yellow colorways, and is equipped with foldable GB prongs for a beautiful and practical appearance.
Recently, when the charging head network disassembled the 140W fast charging of Huayuan Zhixin, it was found that its internal synchronous rectifier controller used Huayuan Zhixin HY913B to help the charger stabilize and efficient output, which will be introduced in detail below.
The product package contains a classic three-piece set, which is a charger, an instruction manual and a PD31 240W fast charging data cable.
In terms of the color of the charger, the 140W gallium nitride is selected to show the vitality of youth, yellow and green, and the shell is treated with high gloss and bright surface, and a lot of elements related to electricity and fast charging are added at the same time. The front of the fuselage is stamped with the Move Speed branding, battery charging logo, "140W" and the traditional Chinese character "電", in addition to a black slanted stripe design.
On the other side, there are "Unbridled Charge", Chagre, Gan 140W, Made in China, and Designed by Move Speed. On both sides, the word electric is printed with diagonal stripes and a square pattern of four arrows. In addition, the charger is equipped with foldable national standard pins, which is convenient for storage and better portability.
After a brief look at the appearance, the charging head network continues to introduce its built-in Huayuan Zhixin synchronous rectifier controller HY913B.
This GaN fast charger is built into Huayuan Zhixin HY913B, which is a digital adaptive multi-mode synchronous rectification controller, which does not require auxiliary winding power supply, and adopts SOT23-6 package.
Huayuan Zhixin HY913B supports DCM, CCM, PFM and QR multiple working modes, the power supply voltage range is 3-25V, and has an adaptive pre-shutdown drive to speed up the shutdown transition and effectively reduce switching losses.
The chip also supports optional minimum shutdown time, drive pull-down at startup, 10ns shutdown delay, and green mode shutdown driver at light load. The drive voltage clamp is 8V, and it is suitable for a variety of synchronous rectifier tubes, which can replace traditional Schottky diodes to improve system efficiency.
Founded in May 2018, Huayuan Zhixin is an industry-leading supplier of analog-digital and digital-analog hybrid IC products, and has provided customers with excellent services with high-performance, high-quality, and stable product solutions for many years. Continuous innovation and a number of technological breakthroughs enable Huayuan Zhixin to continue to lead the development of the industry and provide reliable and advanced power chip solutions for global electronic equipment.
The charging head network learned that the 140W charger of mobile speed adopts PFC+ flyback switching power supply architecture, and the built-in Huayuan Zhixin YY913B is used for synchronous rectification. The chip has a wide power supply range of 3-25V, has a variety of built-in operating modes, and can start Green Mode at light load to save energy. In addition, Huayuan Zhixin HY913B is suitable for a variety of synchronous rectifier tubes, which can perfectly replace Schottky diodes, further improve the efficiency of the whole machine, and is suitable for the pursuit of high efficiency, high power density GaN fast charging, intelligent plug and other charging equipment.