All major e-commerce platforms have launched their own self-operated e-commerce brands, Taobao self-operated, Suning self-operated, Netease strictly selected to make a prosperous fire, Jingdong is no exception, opened a self-operated brand 'Beijing-made', covering all aspects of food, clothing and housing .
Previously, we found that Ali's own Taobao self-operated brand 'Taobao Heart Selection' launched a wireless charger, officially entered the wireless charging industry, and recently we were surprised to find that Jingdong 'Beijing Made' also launched a wireless charger, supporting 5W general charge , Samsung 10W fast charge and Apple 7.5W fast charge.
Beijing-made wireless charger This product has recently reached the charging head network editorial department, today to bring you the unpacking and disassembly of the product.
First, Beijing-made wireless charger unpacking
The Beijing-made wireless charger is packaged in a simple rectangular box with a wireless charger and the words 'Beijing Made' on the front, as well as a product outline picture.
The back of the package is the main specification of the product. Model: JZW5; Color: Black; Product size: 95*95mm; Material: Plastic/aluminum frame/silica gel; Input: DC 5V2A, 9V2A; Output: 10W (max); Transmission distance: RX To TX 3-6mm 7mm max.
Package Contents: Micro USB data cable, Beijing-made wireless charger, manual.
The circle around the product is made of aluminum alloy ring, the color is ochre, anodized, CNC processing technology. The front panel is made of silicone material, which plays the role of anti-skid mobile phone. The center position is engraved with the English word 'J. ZAO' .
The thickness is about half of a dollar coin.
The main technical parameters of the Beijing-made wireless charger are also printed on the back of the product. The back shell is made of plastic material and there is a non-slip rubber pad at the bottom.
There is a status indicator on the side to show different working status.
The product uses a Micro USB input interface.
With the QC 3.0 charger as the input of the wireless charger, the actual measurement can be used to wirelessly charge the iPhone X.
Measurements were made using the Celfras wireless charging test aging stand, showing that the Beijing-made wireless charger supports 10W (9V1.1A) wireless fast charge.
Second, Beijing-made wireless charger dismantling
Remove the bottom non-slip mat and remove the 4 screws. The back shell can be separated to expose the internal PCB board.
Remove the PCB board.
The PCB board is attached to the aluminum alloy heat sink. Here, a black circuit board different from the general PCB is used, and the surface circuits and components are clean and regular.
The back of the aluminum alloy heat sink is attached with a coil and a magnetic piece.
Micro USB female.
Wireless charging master IC, silk screen CFSA2 S013k U0017. The charging head network is known from the industry, this is Jiangxi Lianzhi's SOC master chip CWQ1000. CFS stands for Lianzhi, A2 stands for CWQ1000 QFN package chip, the following two lines are package batches. Number and wafer lot number.
The CWQ1000 is a highly integrated single-chip wireless mid-power transmit IC that provides up to 15W of power. Supports USB or AC adapter inputs. The chip integrates a power amplifier driver, a wide range of DCDC converters, and a communication controller using ASK and FSK. The chip includes a 32-bit ARM Cortex M0 processor to provide a high level of programmability based on its application. The Communication and Control Unit (CCU) can accommodate WPC protocols, including fault handling related to power transfer. CCU supports foreign object detection (FOD) ) Expansion. In addition, the chip also includes over-temperature and voltage protection.
Silk screen H25S40 BGN18BD AP16988.
Semione core cell PED3011M, 4 drive coil MOS.
P404J S100V, resonant capacitor uses 0.4UF CBB film capacitor, a cost-effective solution.
Solder joints are full.
The center of the coil is a temperature probe for monitoring the charging temperature.
The PCB is attached to the aluminum alloy heat sink without any components or printed information on the back.
Dismantle the family.
Third, the charging head network disassembly summary
1, workmanship, the product works well from the inside out, the internal PCB is also unconventional and beautiful, the product has a sense of quality.
2, in terms of materials, the product goes the cost-effective route, the materials used in the law, the aluminum alloy heat dissipation design is reasonable, worthy of the product price.
3, performance, the use of Jiangxi Lianzhi CWQ1000 wireless charging IC, to provide product performance protection, support for mainstream Apple, Samsung wireless fast charge, enough to meet the needs of consumers.
