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磁场无线充wirelessxx 2024-07-11 17:30 54
1, How does wireless charging work? How to achieve it? 2. Electromagnetic induction, magnetic resonance, wireless fast charge will affect the life of the battery? 3, How does wi...

Magnetic field wireless charging

How does wireless charging work? How to achieve it?

Connect the standard charger and data cable of the mobile phone to the wireless charger, and then put the mobile phone directly (vertically) or 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 later, plug and play, convenient and quick.

The phone's standard charger and dataConnect the wire to the wireless charger, and then put the phone in the center 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.

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. After passing through the power management module, the output direct current is converted into high-frequency alternating current through the 2M active crystal oscillator inverter to supply the primary winding.

Wireless charging technology is derived from radio energy transmission technology, low-power wireless charging often uses electromagnetic induction, such as the Qi method of charging mobile phones, but ZTE's electric vehicle wireless charging method uses induction, high-power wireless charging often uses resonance. The power supply device transmits energy to the electrical device, which uses the received energy to charge the battery and at the same time for its own operation.

Now the wireless charging is more common magnetic resonance charging mode. The use of magnetic resonance technology principle, junior high school logistics textbooks have some knowledge, simply put: electricity generated magnetic, magnetic generated electricity!The magnetic field generated by the coil is then converted into electricity by the receiving coil, which is why this wireless charging device often carries a thick base and a "phone case".

The principle of wireless charging technology is "magnetic electricity", simply put, through the charging device and the mobile phone device installed on the two "magnetic equipment" mutual induction and formation of current. At present, products supporting wireless charging have appeared in mobile phones, electric vehicles, smart furniture and other fields. Among them, in the mobile phone industry, the "Qi standard" is the most common, and Qi labels are often used in the packaging of many mobile phones and wireless chargersMagnetic resonance, wireless fast charge will affect the life of the battery?

1, electromagnetic induction, magnetic resonance, wireless fast charge will not affect the life of the battery.

2, factors affecting battery life Although some people worry that wireless fast charging will damage battery life, in fact, wireless fast charging itself will not. Battery life is affected by a variety of factors, such as faulty charging habits (excessive discharge and frequent charging), high temperatures, and non-compliant charging devices. Lithium batteries have no memory effect, and appropriate "use with charge" is beneficial to battery health.

3, however, wireless fast chargeDoes not directly reduce battery life. Battery life is affected by a variety of factors, lithium batteries have no memory effect, frequent charging, power off does not affect. What can really damage a battery are wrong charging habits, high temperatures, and substandard charging equipment. For example, the 40W wireless flash charging technology used by OPPO Ace2 takes into account charging efficiency and safety through series dual cell and air-cooled heat dissipation technology.

How does wireless charging work? What is the farthest distance?

Wireless charging technology is beneficialUsing the principle of electromagnetic induction, the corresponding coil is used to send and receive the induced current at the sending and receiving end to charge.

Radio waves. The principle is to convert environmental electromagnetic waves into current and transmit current through a circuit. This way the transmission distance is greater than 10 meters, which is suitable for long-distance low-power charging, and can also realize automatic charging anytime and anywhere. WiFi wireless charging. It mainly consists of two components, one is a Wi-Fi access point (router), and the other is a customized charging sensor.

The principle of wireless charging technology is electromagnetic induction, magneticField resonance, radio wave mode, etc. Electromagnetic induction type primary coil a certain frequency of alternating current, through electromagnetic induction in the secondary coil to produce a certain current, thereby transferring energy from the transmission end to the receiving end.