The basic principle of wireless charging is to convert the current into a magnetic field, which is transmitted through the air and then converted into a current to be transmitted to the intelligent terminal. When the system works, the input end converts the AC mains into direct current through the full bridge rectifier circuit, or uses the 24V direct current end to supply power to the system directly. The DC output after the power management module is reversed by 2M active crystal oscillatorThe primary windings are converted to high frequency alternating current supply.
Wireless charging system mainly adopts the principle of electromagnetic induction. Wireless charger refers to the charger that does not need to be connected to the terminal device that needs to be charged without the traditional charging power cord, using the latest wireless charging technology, through the use of the magnetic field generated between the coils, the magic transmission of electrical energy, inductive coupling technology will become a bridge connecting the charging base station and equipment.
Wireless charging methods include electromagnetic induction, magnetic resonance, electric field coupling and radio wave transmission, etc. Wireless charging of mobile phones mostly uses the principle of electromagnetic induction. Electromagnetic induction type noneWire charging: When the current of the power supply passes through the coil (the power supply coil of the wireless charger), a magnetic field will be generated, and other unenergized coils (the electric coil of the mobile phone) will be close to the magnetic field, and the current will be generated to charge the mobile phone. As shown below.
Generally seen wireless charging, the use of the "current magnetic effect" and "electromagnetic induction" principle. In 1819, Danish scientist Elster observed that if there is an electric current on a wire, a magnetic field will be generated around it, which can deflect the north finger. Later generations have further found that the wire is encircled into a ring, or even wound into a coil, and the magnetic field generated will be stronger and more concentrated, which is calledPool Self-made fast Charger First of all, remove the software version (or 3 in 1 board) on the kit of the mobile power supply, weld two 10cm wires to the positive terminal terminal, and weld a 10cm wire to the negative terminal terminal terminal (in order to save materials and reduce losses). Reinstall it in the battery case after welding. Adjust the led light position.
2, the use of several lithium batteries to change the operation steps are as follows: First prepare the material, 50 mm PVC pipe, a small piece of PVC board, 18650 battery 8, a mobile power module, a number of wires,Several small screws, electrical tape. Tools, soldering iron, saw, sandpaper, mini drill, screwdriver, etc. Link the circuit, make an L-shaped bracket out of thin plastic sheets. 3, but if I have a bad charging treasure on hand (usually the motherboard is bad, the battery is not bad), I will remove the 18650 inside, buy a mobile power box, so that the charging treasure "full blood resurrection", but also support fast charging. Sometimes, I have idle laptop batteries, will also remove the 18650 inside, "waste use"!! The bottom surface of the 18650 lithium battery is 18mm in diameter and 65mm in height, so it is called 18650.
4, purchase booster module, shell. And other materials. You can make your own mobile power supply. Mobile power supply refers to a device that can directly charge mobile devices and has its own storage unit. At present, the main categories of the market are specially configured for the iPhone charging bank and multi-functional charging bank, but even if the iPhone is dedicated, the basic configuration of the standard USB output can basically meet the current market.
Connect the phone's standard charger and data cable to the wireless charger, and thenPut the mobile phone directly/horizontally in the center position of the wireless charger base, you can realize wireless charging, the indicator light will have a breathing effect, 5 seconds after the extinguish, plug and play, convenient and quick.
Go to My Device First, in the My page of mobile service, click and select to go to "My Device". Click to view device parameters Click to select View Device parameters and proceed to the next step. Select Fast Charge Select Fast Charge to check whether the current mobile phone supports wireless charging. Wireless charging Finally, after confirming, put the phone on the wireless charger, it will display the charging prompt, you canThere.
Place the charger on a horizontal surface or other location suggested by the manufacturer. Place the phone on the charger with the screen facing up. For best performance, place the phone in the center of the charger or in the location recommended by the manufacturer. The phone should make a "drip" sound after placing it on the wireless charger for a few seconds, indicating the start of charging. When charging starts, you should see the symbol "Fast Charge over Super Fast Charge" in your phone's status bar.
Put the mobile phone with wireless charging function on the wireless charging board, the position should be placed, you can charge, pay attention to some mobile phones supported by the wireless charging panelDifferent models, according to their own mobile phone model to choose wireless charging panel.
This is the end of the introduction of diy wireless fast charging and homemade wireless charging diy, do not know you find the information you need? If you want to know more about this, remember to follow this site. < / p >