Recent RealMe official website, I really had 50W mini flashing a gallium tank charger set, priced at 349 yuan. This flash-mentioned charger is designed with Want Want Xianbei, the whole is small, and the value is also very high. Looking at the appearance, it is estimated that many people will talk to the OPPO 50W biscuits charger. The following charging head net is disassembled for the Realme charger to see if it is the same as OPPO.
First, Realme 50W biscuit charger appearance
The product is made of hard paper yellow box, and the front is printed with the appearance, the name, and 50W words.
The box is designed with a heaven and earth, and the back is attached to the charger parameter sticker.
There is a buffered camp on the top cover, and the charger uses tray fixed protection.
Remove the tray, there is also a CC data line and instruction manual.
All things in the packaging.
The CC data line is integrated with a yellow plastic skin, flat, and the wire has black plastic, and RealMe logo and lightning logo are printed.
USB-C male close-up.
The total length of the cable is about 104cm.
Using the Chargerlab Power-Z KT001C to measure the E-Marker chip, the power transmission capacity is 20V5A, and the data transmission capacity is USB2.0.
RealMe This 50W gallium nitride charger is designed with Want Want Fairy-style design, overall flat, smooth and exquisite.
The surface of the body surface is painted, and the side curve design is designed, and the white smooth is smooth.
The top of the fuselage is printed with superdart.
Bottom housing is marked on charger parameter information
Enter: 100-240V ~ 50 / 60Hz 0.8A
Output: 5V6A or 10V5A (50W MAX)
Pd (100-130V): 5V1.5A, 9V1A
PD (180-240V): 5V3A, 9V3A
PPS (180-240V): 3.3-11V3A
Nanjing Boland Electronic Technology Co., Ltd. Made in China.
The product has passed CCC certification.
The input is a foldable national labeled foot, which is easy and does not scratch other equipment in the bag.
USB-C interface white film does not expose copper.
The length of the electrical body body is 81.38 mm using a cursor caliper.
The width is 38.96mm.
The thickness is 10.52 mm. Through three dimensions, the charger volume is 33.35 cm3, and the power density is approximately 1.5W / cm3.
And the KT002 current table of the charging head network is intuitive comparison, the width of the two is quite, and the charger is a bit slim.
Take the intuitive feelings in the hand, very small.
Also very thin.
The net weight is about 55g.
Using KT002 measured USB-C port support Samsung 5V2A, DCP protocol, and QC2.0 / 3.0, Vooc / Dash / Warp, Supervooc, and PD3.0 fast charge protocols.
In addition, the PDO message shows the USB-C port also has 5V3A, 9V3A fixed voltage gear, and 3.3-11V3A PPS voltage gear.
Second, Realme 50W biscuit charger disassembly
Since the body is very flat, there is a glue reinforcement inside, so it can only be taken away from the cutting mode.
The PCBA module input covers the insulating soft rubber, the center is a rectangular planar transformer, and there is a white plastic shell support and isolation, and the output end glue treatment is covered.
List of PCB boards, primary side stickers include thermal pads, rectifier bridges, and planar transformer duct plates to reduce the thickness of the body, and wrap the insulating tape.
Clean the PCBA module clean and use the cursor caliper to measure the main board length of 54.39 mm.
The width is 35.57mm.
A view of the PCB board, the planar transformer casing is on the motherboard, in order to pursue the ultimate ultra-thin, the motherboard corresponds to the transducer region hollow treatment, input capacitance, inductance and other devices.
A list of the back of the PCB board. By observing, this charger uses a typical switching power supply wide range output by the protocol chip to control the architecture of the output voltage. Below we start the information of each element from the input.
The input is a list.
Delayed fuses close-up, specifications 1.6A 250V.
A common mode inductor covered a plastic shell.
Remove it, internal gelatin reinforcement, for filtering EMI interference.
Writing inductance for inputting filtering.
Built-in clamp diodes do primary side overvoltage protection to prevent overbearing capacitors and GaN switch tubes.
Clamp diode on another side close-up.
RTBS30M rectifier bridge close-up.
The input terminal uses three 2220 packages of high pressure MLCC filters to solve the thickness of the conventional cylindrical capacitance.
There is also one side, there is a word inductor between the two high pressure MLCCs.
Ti UCC28782 High density ACF controller supports frequency jitter to reduce EMI electromagnetic interference, built-in X capacitor discharge and bias power management.
TI UCC28782A Details.
The Anshen Mei NCP51530B high and low side gate driver, with Ti UCC28782, used to drive two GaN switch tubes of the ACF architecture.
Anni Mei NCP51530B detail.
Nonjet Semiconductor NV6115 GaN switch tube, built-in complex logic control circuit, 170MΩ guide, pressure length 650V, support 2MHz switching frequency, 5 * 6mm QFN package, saving area.
Nonjet semiconductor NV6115 detailed information.
Charging head network dismantling, using Naxi Semiconductor NV6115, there is also an immediate 65W 2C1A gallium nitride fast charge, mensimia 65W 2C1A gallium nitride fast charge, win 65W PD gallium nitride fast charge, Nubia 65W 锋 three gallium nitride fast charger, ASUS 2C1A 65W gallium nitride charger, millet GaN charger TYPE-C 65W, OPPO 50W biscuit nitride fast charge, Ravpower 65W 1A1C gallium nitride fast charge, Belkin 68W double C port GaN charger and other products.
Another navigator is close-up.
Output list, USB female dump plate design, optically adjusted at the side of the motherboard.
Plane transformer core close-up.
TLP383 optocoupler close-up,
The back surface of the optically coupled plate is four patch Y capacitors, two strings two and.
MPS MP6908A Synchronous Rectifier Controller, maximum operating frequency 600kHz, supports DCM, CCM, and QR and ACF operating mode, support standard voltage and logic voltage-driven synchronous rectification tubes.
MPS MP6908A Detail Specifications Parameters.
Charging head network dismantling, using MPS MP6908A also has Nubia 65W ionized gallium tantroelectric PRO, nut 65W single C gallide charger, Lenovo 90W flash double-port gallium nitride charger, Dell 90W gallium nitride charger, Lenovo ThinkPlus 65W gallium nitride mouth red power supply Pro, Philips 65W fast charge socket, etc.
In addition, the MPS synchronous rectifier chip is also millet 9 pro original 45W fast charge charger, ThinkPlus 45W USB PD charger, ThinkPlus 65W lipstick USB PD charger, purple rice 65W 2C1A desktop PD fast charge charger, Google PixelBook original 45W USB PD fast Dozens of products such as charge appliances are adopted.
The secondary synchronous rectifier uses the Bette of BSZ070N08LS, NMOS, withstand voltage of 80V, and 19MΩ.
Infineon BSZ070N08LS detailed information.
KEMET KME polymer tantalum capacitance, specification is 150μF 16V for outputting filtering, here is also the characteristics of the GaN adapter high switching frequency, and two.
Another metal polymer tantalum capacitor is close-up, the two capacitors are the same.
The MLCC capacitors herein are used for synchronous rectification, and the tantalum capacitors are co-filtered in parallel.
The back of the motherboard is provided with a protocol chip, and the VBUS switch is output.
Agreement chip screen print 8k = 7L, from Liji Technology.
Output VBUS switch tube adopts Yingfine BSC0902NS, NMOS tube, withstand voltage 30V, guide 2.6MΩ.
British Flying BSC0902NS detailed information.
All disassembled, come to Zhang Quanjiao.
Charging head net solution summary
Realme 50W Mini Flashing Nitride Charger The body is white smooth, small flat, plus foldable pins, high color, and is very good. Performance, support VOOC / Dash / Warp, Supervooc private fast charge agreement, also supports QC, PD3.0 universal fast charge protocol, with 3.3-11V3A PPS voltage gear position. Not only can I meet Realme, OPPO, and a brand mobile phone fast charge, but also have good compatibility for other brand phones, giving passers-by. Reasons for this product.
The charging head network learned by dismantling, the charger built-in aviation grade diode, custom integrated inductance and patch capacitance, planar transformer and other devices. The Charger primary side is used with the TI UCC28782A with the Anshen Mei driver, controls the nano GaNFAST gallium nitride power chip, the secondary portion with the MPS MP6908A with the UFC MOS composition synchronous rectification, and the output voltage is controlled by the vertical protocol chip. The input and output filtering is performed using high pressure MLCC, a tantalum capacitor. Overall, the Gallide charger of the 50W biscuits charger with OPPO is similar.