1, Assembly and detail handling Assembly of the coil is a key step, I have provided a detailed outline of the coil. DXF file, step by step teach you how to print, cut anti-interference tiles, and then embed the wireless transmitter coil perfectly. For the cutting part of the shell, I showed how to use 3D printing technology to transform it, inspired by the Coke can, and shared the fine operation in the grinding process.
2, manual Geng self-made charging treasure may be put into production? In the video of Manual Geng, you can see that the charging treasure made by manual Geng can be used outdoors. And the power bank, handmade by Geng, can power a running TV. In addition, this charging bank can also power a washing machine, and can ensure the continuous operation of the washing machine.
3, the large charging treasure made by manual Geng is a large flat battery pack similar to the battery purchased, and then modified, and the external frame and input access and output interface, so as to form a charging treasure.
Zhirong 25W Super Fast charge 15W Wireless fast charge mobile power solution This solution is based on Zhirong's latest super fast charge mobile power chip SW6208 and wireless charging chip SW5100 design and development, mobile power part continues the excellent performance of SW6208, one chip solves the rise and fall voltage control, protocol recognition, 5 charging connectionsPort control, LED power display and other complex functions, its biggest feature is to support 25W super fast charge.
There is no big difference, that is, the charging current power is not the same, 25w fast charging is faster than 15w fast charging. 2 Fast charge refers to a charging method that can make the battery reach or approach the state of full charge within 1 to 5h. It is often used for charging traction batteries when they need to be restored to a fully charged state in a relatively short time.
The difference between 15W and 25W is that the power is not the same, the charging speed is not the same, and the fast charging of 25w is more than the fast charging of 15wHurry up. For example, in the case of mobile phone compatibility, the 15w charger about 3000 mah battery takes about an hour, and the 25w charger, 3000 mah battery can be filled in about 40 minutes.
For example, for the design of 6-10 layers of memory module PCB, it is better to choose 10/20mil (drill/solder pad) through the hole, and for some high-density small-size boards, you can also tryUse 8/18Mil through holes. Under the current technical conditions, it is difficult to use a smaller size of the hole (when the hole depth exceeds 6 times the diameter of the hole, it is impossible to ensure that the hole wall can be uniformly plated with copper); For the power supply or ground wire hole, you can consider using a larger size to reduce the impedance.
In the range of ravg 0~0.08 m, the output power increases first and then decreases with the increase of coil turns; In the range of ravg 0.08~ 0.4m, the output power decreases first and then increases and then decreases with the increase of coil turns. For a fixed operating frequency, quality factorsThe number Q mainly depends on the shape and size of the coil and the material used. Standard coil technologies (such as wire winding coils and PCB coils) generally specify quality factor values.
Wireless charging PCB, different functions, the required components are different. The required components are: resistor, capacitor, resonant capacitor, resonant coil, MOS tube, control chip, protocol chip.
Control chip: manages the entire wireless charging process, including voltage regulation, power control, communication and other functions. Power amplifier (PA) : Increases signal strength in order to transmit energy efficiently. Oscillators and modulators: rawA high frequency AC signal used for wireless transmission. Coils: Used to generate or receive electromagnetic fields, are a key part of wireless charging.
Electric field coupling technology transmits energy wirelessly, although it is less energy efficient, but the most convenient to use. The principle of wireless charging is similar to that of transformer, and the system design refers to the structure of transformer. Wireless charging products are mainly composed of the receiving end and the transmitting end, the transmitting end includes chips, oscillators, power amplifiers, coils, PCB, passive devices, electronic transformers, structural parts, etc., the receiving end is divided into two parts of the chip and module.
Xiaomi 100W wireless charger appearance packagingOM brand, charger name, use scenario and selling point and other information, you can at the same time to the Apple family bucket for wireless charging. The back is also printed with product usage scenarios and feature descriptions, and can also be charged with two iphones and Apple Watch at the same time. Box drawer design, tray on the top of the wireless charging board.
The charger shell is made of PC flame retardant material, the surface is matte treatment, the overall design is simple, the waist side is printed with comma brand and 20W fast charge words, the input side is equipped with fixed national standard pins, stable and durable. The comma 20W charger is disassembledThe top shell of the charger, the edge of the ultrasonic welding process. The USB socket at the output end is provided with a thermal conductivity pad, and the right solid-state capacitor is covered with an insulating tube.
Since the introduction of magnetic charging by Apple, the convenience of wireless charging has been loved by consumers, which has promoted the prosperity of the wireless charging accessories market. Chargers recently disassembled MoYi Moyi's 5-in-1 magnetic wireless charger T268, which can charge two iphones at the same time, and also has Apple Watch charging function, with USB-A charging output and nightlight. Next, we will delve into the design of this productDissect.
The charger can be disassembled, and can be restored after disassembling without affecting normal use. The method is: take the plug first because the IPHONE charger does not use screws, use glue, so only violent disassembly. The internal design of Apple's iPhone charger is very complex and high-end, which makes iPhone chargers more efficient and more secure. This is one of the reasons why iPhone chargers cost more than other phone brands.
3, are two different devices, want to fast charge must spend 388 yuan to buy 29W USB-C charging head, and spend 188 yuan to buy USB-C/Lightning data cable, a total of 576 yuan. The wireless charging base costs 498RMB.
MDY-08-EV and MDY-11-EM are two charger models with different wireless charging pbcb board sizes. For example, wireless charging pbcb board size , MDY-08-EV original charger DC output is 5V/2A, while MDY-11-EM charger DC output includes 5V/3A, 9V/23A, 12V/67A and 10V/25A and other parameters. Therefore, these two models of chargers are different in terms of parametersDifferent. The above information is for reference only.
To this MDY-08-EV and MDY-11-EM, are representative of the charger model, for example, MDY-08-EV original charger DC output to wireless charge pbcb board size : 5V/2A. The MDY-11-EM charger DC output is Wireless charging pbcb board size : 5V/3A, 9V/23A, 12V/67A, 10V/25A. So, these are two different modelsThe parameters of the charger are also different.
①, about the above MDY-08-EV model charger DC output is Wireless charging pbcb board size : 5V/2A. ②, about the above MDY-11-EM charger DC output is: 5V / 3A, 9V / 23A, 12V / 67A, 10V / 25A. 3, to the above two charger models are different, the voltage, current and power of the two chargers are different.