Mobile phone wireless charging refers to the meaning that the charger and the electrical device can be connected to the phone without wires.
Wireless charging, also known as inductive charging, non-contact inductive charging, from wireless power transmission technology, is the use of near-field induction, that is, inductive coupling, by the power supply device (charger) to transmit energy to the power device, the device uses the received energy to charge the battery, and at the same time for its own operation.
Wireless charging refers to the technology of providing electrical energy to electronic devices through wireless technology. Wireless charging mainly relies on wireless induction technology to achieve energy transmission. With the rapid development of electronic technology, the traditional wired charging method has gradually failed to meet the needs of users due to its problems such as inconvenient insertion and removal and limited device location. The emergence of wireless charging technology has solved these problems.
Wireless charging refers to the charger on 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, magical transmission of electrical energy, inductive couplingTechnology will be the bridge between charging base stations and devices. How to use: Connect the USB cable and plug it into the socket.
Mobile phone wireless charging technology is completely without the use of wires, the use of magnets for mobile phone charging technology. Mobile phone wireless charging technology, derived from wireless power transmission technology, uses magnetic resonance to transfer charge in the air between the charger and the mobile phone, coil and capacitor form resonance between the charger and the mobile phone, to achieve efficient transmission of electric energy technology.
The transmitting end is often multiple strands of silk-covered wire, multiple strands of thinner enameled wire or gauze wrapped wire wound inductors are used in relatively high frequency circuits, such as the magnetic antenna rod coil of the radio, the shortwave radio coil, the high frequency transformer coil of the liquid crystal display lighting circuit, etc., often use multiple strands of wire and wound.
◆ Enamelled wire is usedThe paint is surface-coated with insulated wires, so it can be wound into coils of various shapes for use on various electronic devices without short-circuiting each other. ● If it is not enameled wire, but with its wireless coil debugging with what instrument He insulated material wrapped wire, such as gauze wire, silk wire, insulating sleeve pipeline, etc., can also be used as coil.
Silk-covered wire What instrument is used for wireless charging coil debugging : a copper wire is wound with glass fiber wire as an insulating skin. Enamelled wire: copper wire warpChemical insulating material paint is attached as insulation skin. The breakdown voltage of silk-covered wire is only a few hundred volts, the breakdown voltage of enameled wire is several thousand volts, if the insulation is no problem, I think it is possible to exchange.
The price of silk-covered wire is more expensive than enamelled wire. According to the use of the environment, working conditions and other aspects of the need to decide whether to use silk covered wire.
1, the ordinary 555 time base circuit frequency is designed to be 8KM to be used Wireless charging coil debugging whatInstrument , with 0.8 enamoured wire on the diameter of 5 mm cylinder around 11 laps 9 layers to make two spare, the power supply uses 19V switching power supply (remember, must switch power supply), make a charging circuit (oneself free wireless charging coil debugging with what instrument Wireless charge coil debugging with what instrument I use the original mobile phone universal charge will remove the input transformation).
2, the secondary winding is bad Wireless charging coil debugging with what instrument 3, the most used is Ti's chip, about 12 pieces. There are many options for launch, and we're one of them. 4, Schottky diode is used to rectify the signal, after filtering capacitor processing, get direct current, and then charge the battery. In the best working condition, the charging current can reach more than 0.6A. The design of the coil also affects the transmission efficiency, such as the use of drumsAt present, there are mainly the following ways: Qi wireless charging: Qi is a wireless charging standard, many mobile phones and chargers support the standard. Wireless charging can be achieved simply by placing the phone on a charger or wireless charging dock that supports the Qi standard. 2, wireless charging methods are electromagnetic induction, magnetic resonance, electric field coupling and radio wave transmission, wireless charging of mobile phones mostly uses the principle of electromagnetic induction. Electromagnetic induction wireless charging, when the current of the power supply through the coil (wireless charger's power supply coil) will generate a magnetic field, other unenergized coil (mobile phone side of the powerProximity to the magnetic field generates an electric current that charges the phone. 3. The energy transmitting coil is installed in the charging base, and the receiving coil is installed in the electronic device. Resonance This kind of wireless transmission method is similar to the principle of wireless communication, the electromagnetic wave of the resonant loop at the sending end is permeated in the entire space, and the resonant loop at the receiving end is at the specific frequency, so as to achieve the transmission of energy. This transmission mode can obtain higher transmission efficiency when the output power of the receiving end is relatively small. 4, connect the phone's standard charger and data cable to the wireless charger, and then the phone is upright/horizontalPlaced in the center position of the wireless charger base, wireless charging can be achieved, the indicator light will have a breathing effect, 5 seconds after the extinguish, plug and play, convenient and quick.