1, for example, for the memory module PCB design of 6-10 layers Shanghai wireless charging structure design Shanghai wireless charging structure design , the selection of 10/20mil (drilling/pad) through the hole is better, for some high-density small size boards, You can also try using an 8/18Mil pass hole. Under current technical conditions, it is difficult to use a smaller size of the hole (when the hole depth is more than 6 times the diameter of the hole, there is no guarantee that the hole wall will be uniformCopper plated) Shanghai Wireless charging Structure design ; For the power supply or ground wire hole, you can consider using a larger size to reduce the impedance.
2, in the range of ravg 0~ 0.08m, the output power increases first and then decreases with the increase of coil turns Shanghai Wireless charging Structure Design ; 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, the quality factor Q mainly depends onThe 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.
3, control chip Shanghai wireless charging structure design : management of 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: Generate high-frequency AC signals for wireless transmission. Coils: Used to generate or receive electromagnetic fields, are a key part of wireless charging.
4, 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.
5, and 18 requirements must be met. Wireless charging products may have two different modes of operation: charging mode and communication mode. In this case, it is possible to use FCC Part 18 for charging mode and FCC Part 15 for communication mode, but the premise is that the two modes of charging and communication are independent of each other. If the charging mode complies with all the relevant provisions of Part 15, then FCC allows charging mode to replace Part 18 with Part 15.
6, summary Leibur V20W wireless mouse not only in the design of the pursuit of extreme comfort and personalization, but also in the internal technical level to show its innovation and leading position in the field of wireless equipment. From the introduction of wireless charging, to the design of high-performance sensors, precision micromotion and RGB backlight systems, every detail reflects Leiber's deep understanding of user experience and pursuit of cutting-edge technology.
Recently, Green link launched Shanghai wireless charging structure design a popular desktop wireless charger (model CD186), Apple Android universal, support 5W and Apple 5W, Samsung 10W wireless fast charge, the key is the price of only 49 yuan, the price can be said to be the market similar 99 yuan products. In order to understand the work materials of this product Shanghai wireless charging structure design, the next thing to bring you is its unpackingWhich ones?
1. The controlling shareholder's Sanfei Consumer Communications Company is involved in wireless charging technology Shanghai wireless charging structure design , and it is an associated company with Shensunda Shanghai wireless charging structure design , which is controlled by the controlling shareholder. Qingdao Haier Shanghai wireless charging structure design : Haier "tailless TV" adopts wireless power transmission technology in cooperation with the Massachusetts Institute of Technology, which can transmit electricity for the TV without the help of wires, which is also wireless powerThe transmission technology was successfully applied to the television receiving terminal for the first time.
2, SAN An Optoelectronics (60070SH) : SAN An Optoelectronics is one of the well-known semiconductor lighting and display solution providers in China, and it also has a more in-depth research in wireless charging technology. The wireless charging chip developed by the company has been applied in a number of intelligent devices, and has a high market competitiveness. Zte (00006SZ) : ZTE is one of China's leading communications solution providers with an active presence in wireless charging technology.
3, Hengdian East Magnetic (002056) : Hengdian East MagneticIt is a high-tech private enterprise with three industries of magnetic materials, new energy and devices, the leading enterprise in the national magnetic industry, the world's largest permanent magnet ferrite production enterprise, the world's largest soft magnetic material manufacturing enterprise, and the first batch of domestic solar energy manufacturing enterprises to obtain the leader certificate.
4, Shunluo Electronics, stock code 002138. Lichun Precision, stock code 002475. Anjie Technology, stock code 002635. Deepsonda A, stock code 000032. Qingdao Haier, stock code 600690. Raber Technology, stock code 0025Seventy-seven.
1, durable: the power transmission element is not exposed, so it will not be eroded by water and oxygen in the air; There is no contact, so there will be no mechanical wear and fire loss during connection and separation. 2, there are four basic principles of wireless charging, respectively, electromagnetic induction charging, magnetic resonance charging, radio wave charging, electric field coupling charging, the mainstream standards on the market are mainlyQi standard, PMA standard, A4WP standard, iNPOFi technology and Wi-Po technology. Let's take a look at the principle of wireless charging.
3, electromagnetic induction charging technology: This wireless charging technology through the principle of electromagnetic induction to achieve energy transmission. A certain distance should be maintained between the charging base and the charging device. Usually, the charging device needs to be placed on the charging base for charging. This technology has high charging efficiency and is suitable for small electronic products such as mobile devices.
4, static wireless charging Static wireless charging technology is when the electric vehicle stopsCharging the car, depending on its characteristics, is usually suitable for shopping malls/residential parking lots and other occasions. Radiation-type radio energy transmission technology transmits energy through the far field, mainly including radio wave and laser mode, which is suitable for long-distance wireless transmission, due to its low efficiency/low power characteristics, are not mature.
5, the use of wireless magnetic induction charging equipment can be invisible, the equipment wear rate is low, the application range is wide, and the public charging area is relatively reduced. High technical content, easy to operate, can implement relatively long distance radio energy conversion. Disadvantages of wireless charging:Although the technical content of the equipment is high, the economic cost of the equipment is high and the maintenance cost is large.
6, electromagnetic induction. A certain frequency of alternating current in the primary coil generates a certain current in the secondary coil through electromagnetic induction, thereby transferring energy from the transmission end to the receiving end.