Well-known computer brand Asus has launched a new 100W gallium nitride charger, which uses a long body design and a white appearance. The charger has 2C1A three output interfaces, and supports power distribution function, which can provide 100W PD fast charge for notebook computers, or 65+30W dual-port output, while meeting the charging needs of notebook computers and mobile phones, saving time.

 

This charger has a built-in gallium nitride device, uses a stacking process inside, and is significantly smaller than traditional chargers. At the same time, it is also equipped with folding pins for easy carrying and storage. The following charging head network brings the dismantling of this gallium nitride charger from Asus to see the internal process and materials.

 

Before the charging head network also disassembled Asus ROG 1600W titanium gold Thunder God 2 generation power supply, Asus ROG 65W PD fast charger, Asus ROG 100W PD fast charger, Asus QC5 certified 65W PD fast charger, Asus 45W PD fast charger and other products, welcome to check.

 

 

Asus 100W gallium nitride charger unbox

 

 

The front of the packaging box is printed with the product name, 100W and appearance map, and the style is very simple.

 

 

Product parameters, Asustek Computer Co., Ltd. address, contact information and product certification information are printed on the back.

 

 

The package includes a charger, instruction manual and warranty card.

 

 

The charger classic column shape and white color matching, the shell is mainly frosted treatment, can effectively anti-fingerprint, the overall style of the product is simple.

 

 

 

A small part of the right side of the waist is treated with bright surface, which is also a more common design.

 

 

The case is branded ASUS.

 

 

The other side is printed with 100W words below, you can intuitively understand the maximum output power of the product.

 

 

Pin corresponding area shell concave design, can facilitate the user to take out the pin, is a detail design.

 

 

The charger parameters are printed on the input housing
Model: AC100-02
Input: 100-240V to 50/60Hz 1.5A
Output:
USB-C1:5V3A, 9V3A, 12V3A, 15V3A, 20V5A
USB-C2:5V3A, 9V3A, 12V2.5A, 15V2A, 20V1.5A
USB-A: 5V3A, 9V2A, 12V1.5A, 20V1.5A
USB-C1+USB-C2:65W+30W
USB-C1+USB-A: 65W+30W
USB-C2+USB-A: 12W+12W (5V4.8A 24W Max)
USB-C1+USB-C2+USB-A: 65W+12W+12W
Total power: 100W
The charger has passed FCC, PSE, TUV certification, as well as Class VI energy efficiency certification.

 

 

The charger is equipped with foldable gauge pins for easy carrying.

 

 

The output end is equipped with 2C1A interface, all of which are black rubber core, and the pen logo is printed next to the USB-C1 interface, indicating that it can meet the 100W high-power charging of the laptop.

 

 

The measured height of the charger body is 83.87mm.

 

 

The width is 35.14mm.

 

 

The thickness is 43.08mm.

 

 

Compared with the size of Apple 96W charger, the volume advantage is obvious.

 

 

In addition, the net weight of the charger is about 217g.

 

 

Using the ChargerLAB POWER-Z KM003C test, the USB-C1 port supports FCP, SCP, AFC, QC3.0, SFCP, PD3.0, Apple 2.4A, Samsung 5V2A charging protocols.

 

 

And with 5V3A, 9V3A, 12V3A, 15V3A, 20V5A five groups of fixed voltage gear.

 

 

The measured USB-C2 port also supports FCP, AFC, QC3.0, SFCP, PD3.0, and Samsung 5V2A charging protocols.

 

 

At the same time with 5V3A, 9V3A, 12V2.5A, 15V2A, 20V1.5A five groups of fixed voltage gear.

 

 

The measured USB-A port supports FCP, AFC, QC3.0, SFCP, and Samsung 5V2A charging protocols.

 

 

Asus 100W gallium nitride charger disassembled

 

After looking at the appearance and performance test of this gallium nitride charger from Asus, we will disassemble it and take a look at the internal design and materials.

 

 

First, the shell is disassembled along the side seam of the charger folding pin, and ultrasonic welding is adopted between the shells.

 

 

Pull out the internal PCBA module, and wrap tape around the module to secure the insulation.

 

 

A small plate is welded to the input end of the module, and the power supply is connected to the folding pins by wire welding.

 

 

The output end corresponds to each interface welding small plate and corresponding buck circuit, make full use of space, and glue fixed and heat dissipation.

 

 

Using vernier calipers, the length of PCBA module excluding folding pins is about 67.81mm.

 

 

The PCBA module width is approximately 30.55mm.

 

 

The PCBA module height is approximately 38.28mm.

 

 

Tear off the wrapped tape and start to observe the PCBA module, which is composed of 7 PCBS welded, the left small board welded input fuse and EMI circuit, the PFC boost inductor and LLC transformer shielded by copper foil and wrapped high temperature tape insulation, the right side is the step-down output small board, welded step-down circuit and USB-C and USB-A motherboard.

 

 

On the other side, you can see the common mode inductor and safety gauge X2 capacitor welded on the vertical small plate, the PFC boost inductor welded on the vertical small plate, and the left side is the step-down small plate, welding step-down inductor, filter inductor and output filter capacitor.

 

 

The back of PCBA module is welded with an MCU, chip Y capacitor, two PFC switch tubes and PFC rectifier tubes, and two rectifier Bridges.

 

 

A PFC+LLC controller is welded to the small panel on the side, two LLC switch tubes are welded to the bottom, and the synchronous rectifier controller and synchronous rectifier tubes are welded to the right. The white patch optocoupler is used for output voltage feedback. Four of the switch tubes are from Innosecco and the PFC rectifier tubes are from Tyco Tianrun.

 

Through the observation of the front and back of the PCBA module, it is found that this 100W gallium nitride charger of ASUS uses PFC+LLC+SR switching power supply architecture design, PFC for power factor correction, LLC power supply output fixed voltage. The output is realized by two independent step-down circuits to realize independent fast charging of the three interfaces. Let's start from the input side to understand the design and materials of the entire charger.

 

 

The PCBA module is completely split, and it can be seen that the internal components are interspersed, with compact layout and high space utilization.

 

 

The charger input side is summarized, and a small vertical plate is welded for input filtering.

 

 

Small plate welding, small plate welding fuse, two-stage common mode inductor, safety gauge X2 capacitor and differential mode inductor.

 

 

Small plate back welded X2 capacitor discharge resistor.

 

 

The input delay fuse is from Chengrun Electronics, the specification is 3.15A 250V.

 

 

The common mode inductor is wound with enamelled wire and insulated wire.

 

 

The Safety gauge X2 capacitor is from KNSCHA Koenigsen and has a specification of 0.33μF.

 

 

The differential mode inductor is made of magnetic surround and insulated with heat shrink tube.

 

 

The second stage common mode inductor is wound with enamelled wire and insulated wire.

 

 

Input rectifier bridge WRLSB80M from Shenzhen Wolde Industrial Co., LTD., this soft bridge through the soft recovery curve, relatively smooth turn-off characteristics, can reduce the diode junction capacitance to achieve very little harmonic oscillation effect. The selected LSB package has good heat dissipation characteristics, which helps to improve the reliability of the large watt-hour adapter, and a single one can do 60W+.

 

 

Wald WRLSB80M data information.

 

Charging head network disassembly learned, Wolde's soft Bridges are also supplied by Momis 100W 2A2C GAN fast charge, Nubia 1A1C 45W Deutofront GAN fast Charge, Bull 65W PD Fast charge socket, McDuo 2C1A 65W GAN charger, Hongda Sun 65W GAN charger, OPPO 50W Biscuit GAN fast charge, ROCK 65W gallium nitride charger and other fast charging products are adopted, and the product performance is unanimously recognized by customers.

 

 

The capacitance of a thin film filter is 0.47μF 450V.

 

 

The filter inductor is made of magnetic surround and insulated with heat shrink tube.

 

 

Another filter capacitor is soldered to the small plate of the PFC boost inductor.

 

 

The small plate is welded to the film capacitor, and the other side is welded to the PFC boost inductor.

 

 

The other thin film filter capacitance is 0.47μF 450V.

 

 

The power control chip adopts MPS HR1211, which is a multi-mode PFC and current mode LLC two-in-one controller. The functions that can be realized by 2-3 chips in the traditional chip scheme are integrated into one chip. The PFC controller supports CCM and DCM working modes.

 

The HR1211 uses digital loop control, and the chip parameters can be flexibly configured. Support high voltage start and intelligent X capacitor discharge, PFC level supports up to 250KHz operating frequency, LLC level built-in 600V half-bridge driver, internal integrated bootstrap diode, operating frequency up to 500KHz, support rich protection functions.

 

 

The PFC boost switch tube adopts the InnosecCO INN650DA260A gallium nitride switch tube, two in parallel. This is a cost-effective, 650V gallium nitride high pressure single tube, transient voltage 750V, thanks to process improvement, performance has been significantly improved, suitable for 65-120W flyback architecture, 120-200W LLC architecture.

 

INN650DA260A supports ultra-high switching frequency, no reverse recovery charge, with very low gate charge and output charge, in line with the industrial application requirements of JEDEC standard, built-in ESD protection, in line with RoHS, lead-free, EU REACH regulations.

 

 

It is learned that Innoseco gallium nitride power switch tubes also have INN650DA02, INN650DA04 and other models. SPRUCE 140W 3C1A wireless charging 2-in-1 charging stand, AsR 240W Gallium nitride + silicon carbide adapter, QCY 65W 2C1A Gallium nitride fast charging, Lenovo New 100W double C port Gallium nitride fast charging, Nubia 120W 2C1A three port gallium nitride fast charging, Red Devils mobile phone 6 Pro standard 120W PD Gallium nitride fast charge, REMAX 100W Gallium nitride charger, Momis 100W 2A2C Gallium nitride fast charge, Meizu 65W gallium nitride charger and other products are used, and the chip quality has been recognized by the market.

 

 

Close-up of a chip inductor in series with a gallium nitride switching tube.

 

 

The sampling resistance used to detect the current of the PFC switch tube, screen printing R050, is 50mΩ.

 

 

PFC boost inductors are shielded with copper foil and insulated with high temperature tape.

 

 

PFC rectifier from Tyco Tianrun, model G3S06505C, is a voltage 650V, 5A current silicon carbide diode, in TO252 package.

 

 

S3MB diode for PFC bypass, charging the high voltage capacitor through the diode when the power supply is powered on.

 

 

The high voltage filter capacitor comes from sapphire and is 68μF420V.

 

 

The LLC switch tube is from Innoseco, the same model as the PFC switch tube, all INN650DA260A.

 

 

The other is of the same model, and the two make up the LLC half bridge.

 

 

Front view of side panel, welded resonant capacitor, resonant inductor, LLC transformer, filter capacitor and thermistor.

 

 

The resonant capacitor is derived from all Peng electrons and is 0.01μF 630V.

 

 

Resonant inductor close-up, wrapped high temperature tape insulation.

 

 

The transformer adopts ATQ2413 skeleton and tightly wound tape insulation.

 

 

The filter capacitance for powering the main control chip is 100μF 25V.

 

 

A thermistor that detects the internal temperature of the charger for overheat protection.

 

 

Chip Y capacitor from Sichuan Terixiang Technology Co., LTD., with small size, light weight and other characteristics, very suitable for use in gallium nitride fast charge such as high-density power supply products, material number TMY1101K.

 

Terixiang focuses on the research and development, production and sales of passive components, with a registered capital of 100 million yuan. There are two independent capacitor brands: SMD TRX and DIP TY capacitors, TRX will be committed to the research of ceramic materials, in order to expand the application of more categories, to provide customers with more solutions.

 

Charging head network learned that in addition to Belkin, Anker, QCY, sound Li, Maiduo, OPPO, Lenovo, Nubia, Bex, Hailutong, First Wei and other brands of dozens of fast charge products used, In addition, it is also used by Igor 40W LED drive power supply, Changhong 42-inch smart network TV 42P3F built-in power supply, and ZHOfly 45W gallium nitride ultra-fast wall charge, and its performance has been unanimously recognized by customers.

 

 

The CT1018 optocoupler is used for output voltage feedback.

 

 

The synchronous rectifier controller from MPS, Model MP6924A, is an LLC synchronous rectifier controller with enhanced anti-interference and fast shutdown function, compatible with CCM/DCM mode. The MP6924A has two integrated synchronous rectifier controllers, one for each LLC secondary coil output for LLC converter synchronous rectifier applications.

 

 

The two synchronous rectifier tubes are from Hengtaike, model HGN046NE6AL, NMOS, withstand voltage 65V, conductive resistance 3.8mΩ, DFN5*6 package.

 

 

The output side is welded with filter capacitor and filter inductor. Both USB-A and USB-C bases are welded to vertical plates on which step-down circuits are welded.

 

 

The USB-C interface board is connected to the USB-A interface board through a row of pins.

 

 

The output filter solid state capacitor from the cloud star is 470μF 25V, two in parallel.

 

 

Magnetic ring inductors for filtering, using double wire winding.

 

 

One side of the output step-down small plate is welded with a magnetic ring step-down inductor, a filtered magnetic ring inductor and an output filter capacitor.

 

 

The other side is welded with step-down master chip, step-down switch tube, current sampling resistor and VBUS switch tube.

 

 

The main control chip of the buck circuit adopts Zhirong SW3516H, which is used for buck control and protocol identification. Zhirong SW3516H is A highly integrated multi-fast charge protocol dual-port charging chip, which supports A+C port arbitrary fast charge output and supports dual-port independent current limiting.

 

The SW3516H integrates a 5A high efficiency synchronous buck converter. Support AFC/FCP of PPS/PD/QC / / SCP/PE/SFCP wait for a variety of quick charge agreement, maximum output PD 100 w, CC/CV mode, and the double management logic. Only a few peripheral devices are needed to form a complete high-performance multi-fast charging protocol dual-port charging solution.

 

 

The charging head network was found by dismantling, SW3516H is also used by ASUS 65W 2C1A GaN charger, Nubia 65W Deium Front three-port GAN fast charger, LEbo 65W GaN fast charger, Green Link 65W 4C GAN fast charger, Lenovo 90W flash charge double port GAN charger, Hongdashun 120W four-port 2C2A fast charger and other products. In addition, Zhilong's fast charge chip can also be used in USB PD fast charge mobile power, fast charge car charging and other fields.

 

 

The synchronous buck tube used in the match comes from Bandai Semiconductor, model AON7544, NMOS, withstand voltage 30V, conductive resistance 4.1mΩ, adopts DFN3*3 package.

 

 

Close-up of magnetic ring step-down inductor.

 

 

VBUS switch tube screen printing R3, in PDFN3*3 package.

 

 

The output filter capacitance is 220μF 25V.

 

 

The output filter inductor is wound with double wire.

 

 

The USB-C base metal shell has the word KRCONN on it, indicating that the base is from Jingrui Technology.

 

 

The USB-C base is welded through the hole, and the black rubber core is not exposed to copper.

 

 

The other depressurized panel has the same layout.

 

 

The back also adopts the design of Zhirong SW3516H with step-down switch tube. This small board is responsible for USB-C and USB-A port output at the same time, and two VBUS switch tubes are used.

 

 

The step-down main control chip adopts Zhirong SW3516H.

 

 

The buck switch tube adopts AON7544.

 

 

Step-down magnetic ring inductor close-up, glue fixed.

 

 

The output filter capacitance is 220μF 25V.

 

 

VBUS switch tube screen printing R3, two corresponding to USB-C and USB-A interfaces.

 

 

The output filter inductor is wound with double wire.

 

 

The USB-C base is welded through the hole, and the black rubber core is not exposed to copper.

 

 

The USB-A base is welded to the vertical plate, and the filter magnetic ring inductor is welded to the right side.

 

 

Power to the USB-A base is provided by the connected pins through the rear cabling.

 

 

Close-up of magnetic ring filter inductance.

 

 

The USB-A base adopts black rubber core, and the positive and negative poles are widened.

 

 

A standardless MCU is used for interface power automatic distribution control.

 

 

Take it all apart. Get a family photo.

 

 

Charging head network disassembly summary

 

Asus this 100W gallium nitride charger uses a white elongate body design, equipped with folding pins, easy to carry and store, the charger has 2C1A three output interface, single-port output support 100W power output, dual-port support 65+30W output, can meet the daily mobile phone and laptop charging needs at the same time, very practical.

 

Through disassembly, the charging head network learned that the internal design of this charger uses PFC+LLC+DC-DC architecture, and the switch tubes of PFC and LLC use Innosecco INN650DA260A gallium nitride switch tube, with Tyco Tianrun silicon carbide diode rectification, and the output uses two low-voltage MOS tubes of Hentek for synchronous rectification. The primary control chip of power supply and synchronous rectifier controller are from MPS core source semiconductor.

 

The switching power supply adopts a fixed voltage output, and the output adopts a secondary step-down circuit. Two circuits of Zhirong SW3516H step-down output are used respectively to achieve three fast charge outputs. The high-voltage filter capacitor of the charger comes from sapphire, and the output is all solid-state capacitor filter. The PCBA module is composed of multiple PCB welding, making full use of the internal space. The overall design is compact, and the space utilization rate is very high.