Huawei X Niu jointly launched a 40W super fast charging socket. Take it apart and see how it is done.

Prior to this, Huawei and Bull reached a cooperation to build a fast-charging ecology, and will launch a variety of products for the market, covering many scenes such as home, office, hotel, leisure and entertainment, and opening a new era of consumers' electricity habits. At the signing ceremony, the first Bull product supporting Huawei's fast charging agreement was also launched.

Bull ultra-fast charging USB socket has built-in Huawei 10V4A original charger module, which supports Huawei 40W SCP ultra-fast charging. In addition, the socket is equipped with two AC jacks, which can supply power to two devices with a maximum power of 2500W W. The following charging head network will disassemble the new products launched by the two brands in detail to see how the work is done.

I. Appearance of Bull 40W fast charging extension cord socket

The box adopts the classic white and green color scheme, and the front of the box is printed with the bull brand, product name, appearance drawing, 1.2m and Huawei Super Fast Charge logo.

Product parameters, features, precautions, anti-counterfeiting codes and other information are printed on the back.

The plastic bag outside the socket is dustproof.

There are only sockets in the box.

The socket comes with a two-pin plug power cord and is tied with a rubber ring.

The pin is protected by a plastic rubber sleeve.

Bull brand logo is intaglio printed on the other side.

The power cord has a flat design and a smooth surface, and the specification is 300/500V 2x 1.00mm? .

The connection between the power cord and the fuselage has been treated with anti-bending.

The socket body is designed as a brick, and the frosted surface is combined with the bright surface. The whole socket is very simple, and a two-pin jack is provided in the front.

Bull brand logo is intaglio printed on the bright surface above the jack.

There is also a two-foot jack on the side, next to which is the words MAX 2500W maximum power.

The socket parameters are printed on the back.

Product name: Bull extension cord socket (with power adapter)

Product model: GNV-UU2402

Rated power: 2500W W.

Rated current: 10A

Rated voltage: 250V~

USB input:100-240v ~ 50/60hz1.2a.

USB output: 5V2A, 9V2A, 10V4A (maximum 40W)

This product has passed 3C certification.

The end of the fuselage is equipped with USB-A port and white rubber core.

Measured with a tape measure, the length of the power cord is about1.1m.

The fuselage length measured by vernier caliper is 87. 18mm.

The width is 5 1.94 mm.

The thickness is 29.63 mm.

The intuitive feeling of holding the product in your hand.

The total weight of the socket is about 198g.

Using ChargerLAB POWER-Z KT002, it is measured that USB-A port supports Samsung 5V2A and DCP protocols, as well as QC2.0, FCP and SCP fast charging protocols.

Use the USB-A port of the socket to charge Huawei Mate30, and the screen of the mobile phone shows "Super Fast Charge", which successfully enters the high-voltage SCP fast charge mode.

Two. Remove the Bull 40W fast charging extension cord socket.

Disassemble the shell of the socket body, package it with a buckle, and weld the power cord on the integrated copper sheet.

Two sets of AC jacks are designed with integrated copper sheets, and the charger module is covered with a white plastic shell.

The input end of the charger is filled with glue, which is insulated and reinforced, which is helpful for heat conduction.

The plastic shell of USB socket at the output end is reinforced and dustproof, and there is a white plastic plate between the primary parts.

Glue the back of the board to help the chip dissipate heat.

Clean the front silicone, and the charger input terminal is energized through elastic contact.

The length of the charger motherboard measured by vernier caliper is 44.54 mm.

The width is 40.91mm.

Looking at the front of the motherboard as a whole, there are three high-voltage filtering electrolytic capacitors in the middle and a planar transformer on the left.

Overview of the back of PCB.

The input terminal list, rheostat and NTC surge suppression resistor are protected by heat shrinkable tubes.

Detail diagram of 2.5a250v delay fuse.

SFV 10D56 1K+0K varistors are used for input overvoltage protection.

Close-up of NTC surge suppression resistor, used to suppress power-on surge current.

Side view of PCB board, there are * * * mode inductors and I-shaped inductors on the left side of fuse.

* * * mode inductance close-up, used to filter EMI interference.

Close-up of TMBFR3 10 rectifier bridge in Wei Ping, Chongqing, with maximum working temperature 150 and maximum surge current 90A.

Chongqing Wei Ping TMBFR3 10 details.

Close-up of I-shaped inductor.

The three high-voltage filter electrolytic capacitors are all CapXon Fengbin, and the same specifications are all 400 V 22 μ F.

The primary switch tube is equipped with a special heat sink, the left side is equipped with the power capacitor of the main control chip, and the right side is welded with a planar transformer.

The planar transformer is covered by a plastic shell.

A close-up of the power supply capacitor of the main control chip, also from Fengbin, with the specification of 25V22μ F. ..

Huawei customized the main control chip OB2639 for Anbao.

The primary switch MOS transistor adopts ST stmicroelectronics STF 13N65M2, with a withstand voltage of 650V and a resistance of 0.43Ω.

STF 13N65M2 information.

Take a look at the planar transformer, which is wrapped in an insulating plastic shell.

The small plate of planar transformer passes through the magnetic core, and the magnetic core is wrapped with copper foil and grounded.

The magnetic core is broken, and there is a flat coil inside, which is printed on PCB.

Yiguang EL 10 18 optocoupler is used for primary and secondary communication, and the output voltage is adjusted by feedback.

At the output end, the protocol chip and the output VBUS switch tube are under the mother base, and the solid-state capacitor and Y capacitor are on both sides.

Two Y capacitors are connected in series to improve the withstand voltage level.

Another close-up

The detailed diagram of OB20 19 secondary synchronous rectifier controller is also a customized model.

The synchronous rectifier adopts NMOS UBIQ qn 0 102 M6 n, withwithstand voltage of 100V and resistance of 6mω.

UBIQ QN0 102M6N information.

Close-up of output filtered solid-state capacitor with two specifications of16V470μ f f.

The third size is16v180μ f.

The protocol chip adopts OB2609, with customized model.

Output VBUS switch tube close-up, diode DMN2005UFG, NMOS, withstand voltage 20 volts.

Details of diode DMN2005UFG.

Close-up of USB-A mother module.

All dismantled, let's have a family photo.

Summary of disassembly of charging head net

Bull ultra-fast charging USB socket is all white in appearance, and adopts semi-matte and semi-smooth processing technology to distinguish strong and weak parts. Two 220V national standard two-pin jacks, built-in safety protection door and a USB-A DC output interface support 5V2A, 9V2A and 10V4A output, which can meet the fast charging requirements of Huawei mainstream models. The characteristic design of socket+charger can simplify the luggage configuration of travel users, so as to go out lightly without losing the fast charging experience.

When the charging head net is disassembled, it is found that the conductive copper sheets of the two AC jacks are designed as a whole and welded firmly with the wire vias. The charger module is wrapped in plastic shell for isolation protection, the input end is reinforced by glue for heat conduction, and the output end is reinforced by plastic shell for dust prevention, with exquisite details. The charger adopts OB2639+OB20 19+OB2609 full-set customized fast charging scheme, and cooperates with high and low voltage MOS tubes of stmicroelectronics and UBIQ, as well as Wei Ping rectifier bridge. The material is solid and reliable after being filtered by Fengbin capacitor.