Founded in 1907, Royal Dutch Shell GmbH is one of the world's leading energy companies and a giant in the automotive oil industry. And it is such a company, many people certainly did not expect that it is also associated with fast charging, and there are not only chargers but also car chargers.
Recently, the charging head network got a mini 20W PD fast charger from Shell, which is not only small in fuselage, but also equipped with national standard plugs, which can be seen to be sold in China. Large energy companies cross-border fast charging, how to do it must be many people are curious, then let's take a look at it with the small editor.
First, Shell mini 20W fast charging appearance
The front of the box is printed with the Shell shell logo, charger appearance and name, and the bottom of the PD fast charge, ultra-mini design, charging speed double, multi-model compatibility of the four major selling points logo.
The back is designed with a schematic diagram of the charger and the relevant parameter information is printed.
The package contains a charger and a user manual.
The charger adopts a white shell of PC flame retardant material, the surface is all matte treatment, and the top edge is designed with a small circle, which looks like a bulge.
The overall fuselage is very simple, and only the side of the body is printed with a shell logo.
The input end shell is yellow, and the fixed NATIONAL standard pin is adopted.
Charger parameter information is printed on the input housing
Model: TC-D046
Input: 100-240V~50/60HZ 0.6A
Total output power: 20W Max
USB-C输出：5V3A、9V2.22A、12V1.67A
USB-A output: 5V3A, 9V2A, 12V1.5A
Manufacturer: Dongguan Juhai Technology Co., Ltd
The charger has been CCC certified.
The top surface is equipped with dual 1A1C output connectors with red and black cores.
The measured charger body height was 30.06mm.
The width is 28.52mm.
The thickness is 28.55mm.
Compared with Apple's 20W charger, the volume advantage is obvious.
Intuitive feeling in the hand.
The weight is about 37g.
The USB-C port measured using the Chargelab POWER-Z KT002 supports Apple 2.4A, Samsung 5V2A, DCP protocols, as well as QC2.0/3.0, AFC, FCP, PD3.0, PPS fast charging protocols.
In addition, the PDO message shows that the C port also has three sets of fixed voltage gears of 5V3A, 9V2.22A and 12V1.67A, as well as two sets of PPS voltage levels of 3.3-5.9V3A and 3.3-11V1.8A.
Finally, the A port is measured to support QC2.0/3.0, AFC, and FCP fast charging protocols.
Second, Shell mini 20W fast charge disassembly
The input housing is detached and one of the pins is connected directly to the safety resistor, which is protected by an insulating tube jacket.
The back of the input panel is affixed with a thermal pad.
The measured module length was 26.34mm.
The width is 23.09mm.
The thickness is 24.75mm.
The module consists of two small plates welded vertically to each other, and the two female seats are welded on both sides of the small board at the output end.
It was found that the charger uses a QR switching power supply architecture to support a wide range of outputs, and the protocol chip controls the 1A1C dual-port output voltage through optocouplers. Let's start with the inputs to understand the information of each device.
At a glance at the input, there is an isolation plate between the high-voltage filter electrolytic capacitor and the small board at the output end, and the other capacitor is covered with an insulated tube.
The back of the input panel is equipped with a rectifier bridge, a switching power supply master chip, a primary switching MOS tube, an optocoupler, and a chip Y capacitor.
Close-up of the fuse resistor, 2A 250V.
The rectifier bridge adopts the WRAPS20M of Shenzhen Wald Industrial Co., Ltd., which can reduce the diode junction capacitance to achieve very little harmonic oscillation through the softer recovery curve and smoother shutdown characteristics.
Wald WRABS20M profile information.
Charging head network disassembly learned that Wold's soft bridge is also used by Momix 100W 2A2C gallium nitride fast charger, Nubia 1A1C 45W deuterium gallium nitride fast charger, bull 65W PD fast charger, Maddodo 2C1A 65W gallium nitride charger, Hongdashun 65W gallium nitride charger, OPPO 50W biscuit gallium nitride fast charge, ROCK 65W gallium nitride charger and other fast charging products, product performance has been unanimously recognized by customers.
The high voltage filter electrolytic capacitor is 400V 15μF.
The other is 400V 22μF.
I-beam inductance close-up, jacket insulated tube.
Close-up of the switching power supply PWM controller.
Close-up of primary switch MOS tube, Infineon IPN70R1K0CE, withstand voltage 750V, conductivity 1Ω, in SOT223 package.
There is a transformer on one side of the module.
Transformer close-up.
CES1019 optocoupler for primary secondary communication, feedback output voltage.
The CHIP Y capacitor comes from Sichuan Terry Xiang Technology Co., Ltd., which has the characteristics of small size and light weight, which is very suitable for high-density power products such as gallium nitride fast charging.
Terry Xiang focuses on the research and development, production and sales of passive components, with a registered capital of 100 million yuan. There are two types of 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.
The charging head network learned that in addition to being used by dozens of fast charging products of Brands such as Belkin, Anker, QCY, Shengli, Maddo, OPPO, Lenovo, Nubia, Beth, Hailutong, First Guard, etc., in addition to being used by Igor 40W LED drive power supply, Changhong 42-inch intelligent network TV 42P3F built-in power supply, Zhuo Feihang 45W Gallium nitride ultra-fast wall charging and other products, the performance has been unanimously recognized by customers.
The output panel is equipped with a synchronous rectifier chip and a protocol IC.
Remove the small board and have an output filter solid capacitor on the other side.
The secondary synchronous rectifier chip is from Jiehuate Microelectronics Co., Ltd., model JW77186B, integrated 60V/13mΩ MOS, support CCM, DCM, QR mode.
JWWT JW77186B profile information.
The charging head network disassembly learned that the Jiehuate fast charging scheme has also been adopted by Zhongxian 65W 2C1A Gallium Nitride Fast Charger, Beth 87W Dual-Mode Hybrid Gallium Nitride Fast Charging, Ailambo 10000mAh Two-in-One 60W Gallium Nitride Fast Charging, Ruiyuan Industrial 33W 1A1C Gallium Nitride Fast Charger, REMAX 30W Gallium Nitride Charger and other products.
Output filtering solid capacitors are from Yongming, NPX series.
The specification is 16V 560μF.
The charging head network learned that Yongming also launched KCX and NPX series small-volume filter capacitors for the PD fast charging market, and was used by Anker 30W Gallium Nitride Super Charge, Anker 65W Gallium Nitride Super Charge, Anker 45W Gallium Nitride Super Charge, Flash Pole 100W 3C1A GaN Fast Charge, Momis 65W 2C1A Gallium Nitride Fast Charge, Beth 45W 1A1C Gallium Nitride Charger, Nubia 65W Deuterium Blade Gallium Nitride Charger and other products, in addition to being used in Small Black, Pinsheng, Bunkers and other brands 20W mini charge, won the unanimous recognition of customers.
The protocol chip adopts Cloud Silicon Semiconductor XPD738 for 1C1A dual-port control. XPD738 passed the USB PD3.0 certification (TID: 3479), support PD2.0/3.0, PPS, QC2.0/3.0, FCP, SCP, HVSCP, AFC and other fast charging protocols, very suitable for application in 1C1A dual-port charging devices, support any single-port fast charging dual-port output 5V, in the A port connected to the Apple charging cable but not connected to the Apple mobile phone, the C port still has fast charging.
Cloud Silicon Semiconductor XPD738 data information.
Charging head network disassembly learned that Yunsi Semiconductor XPD series fast charging protocol chip has been used by Lenovo 20W 1A1C fast charging socket, Aoji 20W PD fast charger, Beth 20W mini PD fast charging, Hailutong 20W PD fast charging, Aoji 1A1C 32W fast charging, Oreoco 20W USB PD fast charging, Leqi leading 20W PD fast charging and other brands of dozens of products, seize the 20W PD fast charging outlet, Fuman Group Yunsi Semiconductor single-month PD protocol chip sales exceeded 10 million.
USB-A mother seat close-up.
USB-C female close-up.
All disassembled, let's take a family portrait.
Charging head net disassembly summary
Shell's mini charger is equipped with 1A1C interface, the overall size is still only 30 * 28 * 28mm, very small, is a highlight of the product. Dual-port support QC2.0/3.0, AFC, FCP, PD3.0, PPS fast charging protocol, which can meet apple iPhone 12/13 mobile phone 20W fast charging, and also has good compatibility with Xiaomi, Samsung and other brands of Android machines.
Through disassembly, the charging head network learned that the safety resistor and the high-voltage filter electrolytic capacitor on the primary side of the module were insulated. Using the classic QR switching power supply architecture, synchronous rectification chip adopts JW77186B, built-in 60V MOSFET, Yongming small capacitance for synchronous rectification output filtering, and Yunsi Semiconductor XPD738 protocol IC controls the dual-port output. In addition to the effective use of internal space in small board stacking, the use of these devices also helps to miniaturize the module.