Huawei, as the oldest leader in domestic communications equipment, is not new to entering mobile power. Several mobile power supplies previously launched by Huawei Glory have a powerful performance and workmanship quality. This time, there are two Huaweis. The 10000mAh fast charge mobile power, what difference does they have? We can start from the dismantling of this area, and peep with everyone.
First of all, you can see that the head and the shell are two different structures. The body of the sandblasted aluminum alloy body is printed on the bright surface with 10 characters and represents 10000mAh. The plastic material head of the piano paint effect.
The appearance of the two charging treasures is not much different. The most obvious place is the USB-A port. The AP09S is purple and the AP09Q is light green. From this point of view, the AP09S purple positive and negative electrode springs are clearly visible. Very large, Huawei SCP needs to support 5A current output, such a large current ordinary USB shrapnel can not afford, so Huawei widened the shrapnel to increase the contact area, so that the USB port can withstand greater current.
First, Huawei AP09S dismantling
Charging head network next to everyone dismantling Huawei AP09S 10000mAh mobile power.
The AP09S head and housing are two different structures. The body of the sandblasted aluminum alloy is printed on the bright surface with 10 characters representing 10000mAh. The plastic material head of the piano paint effect. The panels are from left to right with purple tongues. USB Type-A regular output jack, USB Type-C input jack, 4LED power display, activation button.
10000 words were printed on the arc body, representing a capacity of 10000mAh.
The Huawei LOGO is printed on the back of the mobile power supply.
In addition to the purple injection molded tongues, the USB Type-A jack has a special feature. Look carefully at the outermost edge of the tongue. The two positive and negative tabs are very wide. Huawei SCP needs to support 5A current output, such a large current Ordinary USB shrapnel can not afford it at all, so Huawei widened the shrapnel to increase the contact area, so that the USB port can withstand more current.
Bottom nameplate information, Product name: Huawei mobile power supply (10000 SuperCharge), Model: AP09S, Cell capacity: 5000mAh 7.4V/37Wh, Rated capacity: 7000mAh (5V1A), Input: 5V4.5A (MAX) 5V2A / 9V2A , Output: 4.5V5A / 5V4.5A / 5V2A / 9V2A.
Using CharerLAB POWER-Z test, AP09S supports QC, FCP, SCP and other fast charging protocols.
The Huawei AP09S is an upgrade. There is no major difference in structure between the AP09Q and the old AP09Q. Start with the nameplate at the bottom.
The old nameplate adhesive method uses double-sided adhesive, while the new one is replaced with white silicone rubber. After removing the nameplate offset, 6 screws can be seen tightening the limiting base plate.
Remove the screws and remove the limit plate.
Then you can pull the mobile power out of the aluminum housing.
The mobile power supply uses an internal frame design to protect and wrap the PCB and battery. The PCB covers the bottom of the battery with ample thickness of the buffer partition.
Press the head piano paint shell 8 bayonet to separate the head, then remove the screw to open the PCB cover.
The core part learned from the code that this is a cell produced by ATL, the energy is 19.0Wh discharge platform is 3.8V, uses two batteries to form the battery pack, but not the common parallel design, but 2S two strings Program.
The NTC temperature probe is placed between the two cells to monitor the temperature more accurately.
PCB patch surface at a glance, the entire PCB is covered with a layer of transparent moisture-proof insulating adhesive.
The nickel strip welding process for the battery has been evaluated many times. The copper strips are wrapped in the intermediate layer and then spot-welded in a sandwiched sandwich. The eight welding seams are welded uniformly and firmly. The best in the industry One of the welding processes is not pleasing to the eye.
Shanghai South core SOUTHCHIP SC8802 buck-boost charge and discharge controller. According to the charging head network analysis, Nanxin SC8802 has an ultra-wide range of input and output voltage. It can support applications ranging from 2.7V to 30V, covering QC3.0 minimum voltage to USB -PD highest output level output. Satisfy customers from 1 to 6 different requirements of lithium batteries.
When the system needs to be discharged from the battery pack, the SC8802 can output the required voltage in the reverse direction. The output can also be lower than, higher than or equal to the battery pack voltage. The SC8802 can be boosted, stepped down or stepped up and down, and used externally. Resistor adjusts switching frequency, battery voltage setting, and input/output current limit to simplify design while meeting the needs of different applications.
This makes single-port TYPE-C high-power output possible. Meanwhile, Nanxin SC8802 series supports input current limit, output current limit, dynamic input power regulation, internal maximum current limit, output overvoltage protection, short circuit protection, and overtemperature protection. A series of protection functions to ensure that the system can adapt to various abnormal conditions.
Shanghai Neusoft Carrier EAST SOFT HR8P506 32-bit MCU.
Silk screen 6612F 000 712C, WeChat solderend to Huawei custom SCP protocol chip.
Silkscreen DC2603 is Taiwan Bo Sheng MOS tube, -20V, -60A, RDS(ON) = 8mΩ, VGS = -4.5V, input protection.
Silkscreen HQAA G20.
List of PCB back.
Two Taiwan Bosung DC2603 MOS as USBType-A output port protection, next to a 16V100uF solid-state filter.
Two AO 5820 protection as a battery pack.
Silk screen printing CGVV, the upper and lower battery pack nickel strips will not be deformed with sponge filling.
USB Type-C input port protection.
4 white LED power indicators, the first indicator with a green LED, fast charge mode will switch to green.
Huge 10*10mm inductor, surrounded by four AO7544 low resistance MOS.
All dismantling at a glance.
