AT&T and Verizon are the world's leading two major telecommunications companies and mobile phone operators. Its business is mainly around mobile phones, and it also has related peripherals. Today, AT&T wireless charging and Verizon wireless charging are brought to you. Solution comparison.
AT&T's wireless charging model is made into the appearance of its own logo. When working, it will light up a blue light, echoing the blue color of its logo, with a sense of design and exploding.
VERIZON is the world's first Qi multi-coil 15W product, and the world's first 15W wireless charger with EPP standard certification.
First, AT&T wireless charging and disassembling
There is an 'AT&T' logo in the upper left corner, and the full name Wireless Charger with fast charge adapter in the upper right corner. The bottom line of the small line indicates 20% faster than the normal wireless charging. There is an obvious Qi mark in the lower right corner, indicating this The product is certified by the WPC Wireless Charging Alliance Qi, which is more reliable in terms of compatibility and security.
The back of the package is the main technical parameters, input 5V2A, 9V1.67A, output maximum support 10W, charging distance 6-8mm, soft surface, stable anti-skid. Retail price: 50 dollars.
Package Contents: Wireless charger, QC3.0 fast charge source adapter and Micro USB data cable (1.5m).
The front rubber surface of the product is also printed with the AT&T logo.
The back is the main specification. Product model: 06122. Product name: 10W Fast Charge Wireless Charger. Input specifications: 5V2A, 9V1.67A. FCC ID: YJW-06121.
The input interface adopts Micro USB interface. The frame and base except the front panel are made of one-piece metal material, which has better texture and convenient heat conduction during charging.
The thickness of the product is about half the diameter of a dollar coin.
The product has passed the Qi certification, and the compatibility with other Qi-certified devices is good. The measured test is compatible with iPhone X and other mobile phones. When the wireless charging works normally, a blue light will be lit around.
Model QC01 with QC3.0 charger is American standard two-pin plug. Input supports 110-240V wide voltage, output 3.6-6V/3A, 6.2-9V/2A, 9.2-12V/1.5A.
There is a non-slip rubber pad at the bottom to stabilize the anti-slip. Open the screw to expose the screw. It can be seen that the product assembly is screw-fixed.
The anti-slip rubber pad attached to the base was completely opened, and it was found that a total of 6 screws were embedded in the product body.
The front cover can be separated by removing the screws, and the main components such as the internal PCB, coil, and magnetic disk can be exposed.
Separating the PCB and the coil from the base magnet, you can see that the PCB is in a ring shape and penetrated by 6 screw holes in the middle. The components on the board are very compact and the scheme is simple. The coil is wrapped in the middle of the inner ring. PCB board The outer side is covered with a circle of LED lights, 12 groups are evenly distributed symmetrically, each group consists of two small LEDs next to each other, a total of 24, which can display red or blue light effects to indicate different working conditions.
The back of the PCB, without any components and printed information.
Micro USB socket for the input interface.
The main control chip is CVSMicro core micro CV90318, which is a 10W wireless charging transmitter chip that conforms to the Qi V1.2.4 standard.
CV90318 chip detailed Datasheet specifications: Compatible with WPC Qi V1.2.4 standard specification, support SFC Samsung fast charge, input support 5V and 9V QC2.0 fast charge protocol, maximum output power up to 10W, efficiency up to 84%, dual FOD foreign object detection. Applications include: smartphones, handheld transmitters, sealing tools, automotive and other car transmitters, desktop transmitters, mobile power supplies, etc.
Silk screen LTH2902, four op amps.
The drive coil MOS, peak 岹 FD2105M and silk screen 1735 T30 each have two.
4 NPO capacitors. The solder joints connecting the coil to the PCB are full.
Family portrait.
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