preface
Apple's iPhone 12 and 13 series mobile phones support magnetic wireless charging, not only support wireless charging, but also use magnetic accessories for adsorption and fixation, which greatly expands the application range of wireless charging. The corresponding wireless charging products not only have wireless charging with magnetic adsorption, but also wireless charging mobile power through magnetic adsorption.
The charging head network got anker Anker's newly launched 622 magnetic wireless charging mobile power supply, which has a USB-C two-way interface and a built-in 5000mAh high-voltage lithium battery, with higher energy density. At the same time, it has a folding bracket, which can unlock more postures, which is very practical.
Anker Magnetic Wireless Power Bank unboxed
The box is still blue and white color design, the style is simple, and the FRONT is printed with the ANKER brand logo.
The product parameter sticker on the back and the warranty period is up to 2 years, indicating that Anker has full confidence in the quality of this product.
The product has three color styles of interstellar gray, marble white and morning mist blue, the flat size of the fuselage is comparable to the apple original power supply, plus the product is covered with skin-friendly materials, and the use of feel and experience is quite good.
The center of the bracket is printed with the ANCHOR logo.
Magnetic folding bracket is a highlight of the product design, not only can make this magnetic charging treasure seconds vertical wireless charging, but also does not affect the overall portability, the design is very clever, greatly improving the practicality of the product.
Product parameter information is printed on the fuselage case
Model: A1611
Product size:105*66.5*12.8mm
Weight: 140g
Battery cell capacity: 5000mAh
Rated capacity: 3100mAh
Lithium battery energy: 5000mAh/3.85Vdc/19.25Wh
Conversion efficiency: >77.9%
USB-C input/output: 5V2.4A
Wireless output: 5W/7.5W
Total output: 12W
Warranty time: 24 months
Manufacturer: Anker Innovation Technology Co., Ltd
The other side is the design of the wireless charging area that is convenient for identifying, which is convenient for users to charge wirelessly.
The bottom of the fuselage is equipped with a power key, USB-C interface, wireless charge/power indicator, and the interface tongue is the consistent blue color.
The measured length of the charging treasure is 105mm.
The width is 66.56mm.
The thickness is 13.53mm.
The size of the hand is intuitive, and the overall work is quite exquisite.
Net weight is approximately 146g.
The product fits the phone, and it will not be pushed to the phone camera to affect the shooting experience while charging.
In addition, the adsorption of the product is also very good, which can adsorb the Apple iPhone 13 Pro Max without falling.
In addition, the bracket can also be removed from the support, so that the phone can be charged horizontally/vertically, so that the charging side brush or receive messages. From the figure, we can see that Anker's charging treasure can normally charge Apple's iPhone 13 Pro Max with 7.5W magnetic wireless charging.
When charging wirelessly, the leftmost charging status indicator will light up, which is a little darker than the battery indicator.
Anker magnetic wireless charging treasure disassembly
After having a basic understanding of the appearance, size, adsorption force, etc. of Anker's magnetic wireless charging board, the following continues to disassemble it to see how the actual material work of the product is.
Remove the cover along the seam of the cover, which is fitted with a positioning magnet and a graphite thermal guide.
Inside is a wireless charging coil and circuit board, with a layer of thermal pad on the board and a capacitive distance sensing patch on the right for detecting mobile phones.
Close-up of graphite thermal stickers.
A magnet on the front of the cover plate for adsorbing the phone.
The PCB is screwed inside the housing.
Unscrew the screws and remove the battery and PCB board, which are secured inside the housing with double-sided adhesive.
The mobile power supply has a built-in 5000mAh high voltage lithium battery, the battery charging limit voltage is 4.4V, the average voltage is 3.85V, and the rated capacity is 5000mAh, which is a lithium cobalt oxide battery, designed by Anker.
The position of the corresponding circuit board inside the housing is affixed with a graphite thermal guide.
The battery is connected to the PCB by spot welding, and the wireless charging coil, thermistor, and capacitance distance detection patch are all soldered to the PCB.
On the back of the board are integrated power stages and NPO resonant capacitors for wireless charging, as well as protocol chips.
Close-up of battery information.
The wireless charging coil is wound with Leeds wires and the coils are tightly arranged.
Close-up of the thermistor that detects battery temperature.
Detect the capacitive distance detection patch of the mobile phone, and after detecting the mobile power supply and the mobile phone adsorption through the distance sensor chip, the wireless charging will be automatically turned on. The ANKER brand and product model are printed on silk screen, soldered to the circuit board, and the solder is reinforced with glue.
Silk screen printing 22-B capacitive distance detection chip, for mobile phone detection, automatically turn on or off the wireless charging function, improve the use experience and help save power consumption.
The mobile power supply has a built-in Nanxin SC2003 protocol chip, nanxin SC2003 is a highly integrated USB PD controller, which can support PD3.0 protocol as a DRP role and is suitable for a variety of applications. It features a 30V voltage rating and multiple built-in protections, including thermal protection, overvoltage, undervoltage, overcurrent, and short circuit protection to ensure safe system operation, and integrates a gate driver, 10-bit ADC, and precision amplifier with streamlined peripheral components.
Nanxin SC2003 details information.
The charging head network learned that the use of Nanxin fast charging chip also has Nanfu Aircharge 65W PD fast charger, Love No Open 1A1C 65W PD fast charger, Zimi 65W USB PD fast charging six-digit extension cable plug board and other products. In addition, Nanxin also has fast charging chips for high-power mobile power and high-power car charging, which have been recognized by Huawei, Xiaomi, Zimi, Samsung and other brands.
VBUS switch tube for USB-C interface, silk screen 2004.
Paired with the NMS SC2003 protocol chip is the S&S CORE SC8933 built-in reverse boost discharge output synchronous buck charging converter, the chip integrates two ultra-low conductivity NMOS, which can support 12V2A charge and discharge operations with an efficiency of up to 92%, adopts I2C interface, has rich charge and discharge control and perfect abnormal state protection functions, and integrates the port NMOS isolation tube drive control, supporting up to 3 USB ports. It adopts QFN4*4-32 package, with few peripheral devices, which is very space-saving.
Nanxin SC8933 Details.
2.2μH alloy inductor, with SC8933 for battery charging and boost output, inductor glue reinforcement and auxiliary heat dissipation.
Another screen printed L2016 switch tube for wireless charge and power control.
Wireless charging uses Jinxin Micro CV90325 wireless charging master control, which meets the Qi V1.2.4 EPP certification standard. Support 5W BPP, 10W SFC Samsung fast charge, 7.5W Apple fast charge. 127.7kHz fixed frequency voltage regulation, energy efficiency conversion rate of 83%, input support 5V, 9V, 12V, output support 5W, 7.5W, 10W, 15W, support dual FOD, Q value detection, coil coupling distance of 10mm, OCP, OVP, OTP protection.
Jinxin Micro CV90325 Details.
Silk screen printed 6GL09 wireless charging power stage chip for wireless charging emission.
Four parallel NPO capacitors close-up for wireless charging resonance.
Wireless charging master external passive clock crystal, SMD package, 16.000MHz.
Silk screen printed 1003SBD lithium battery protection chip.
Silk screen printing 2002 battery protection tube, the two form a battery protection circuit, for the built-in lithium battery overcharge, overdischarge and overcurrent protection.
The LED battery indicator close-up.
Close-up of the power switch button, reinforced with glue on the back.
USB-C female close-up, blue rubber core, via welded fixed.
All disassembled, let's take a family portrait.
Charging head net disassembly summary
This mini magnetic wireless charging treasure launched by Anker Anker has a built-in 5000mAh high platform battery and uses a single USB-C interface to charge a power bank or output. At the same time, the built-in magnetic wireless charging function can be conveniently adsorbed on the back of the Apple mobile phone for wireless charging, and the self-contained bracket can be used as a mobile phone bracket to support vertical and horizontal placement.
Through disassembly, it is found that this mobile power supply has built-in NANXIN SC2003 protocol chip and Nanxin SC8933 mobile power management chip for the charging and discharging function of mobile power supply. Wireless charging adopts Jinxin micro CV90325 wireless charging master control with integrated power stage, and the circuit integration is high. The battery is equipped with a protection circuit and has a thermistor for temperature monitoring, which is easy to use and reliable.