This article gives you a talk about the quality of wireless charging coil, as well as the knowledge points corresponding to the production process steps of wireless charging coil, I hope it will be helpful to you, don't forget to collect this site. < / p > < h2 > the article directory list: < / h2 > < ul > < li style = 'margin - bottom: 3 px; list-style: none'>1, noneWire charger coil with silk covered wire or knee covered wire good
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.
◆ Enameled wire is an insulated wire coated with paint, so it can be wound into a variety of shapes of coils used in a variety of electronic devices, without producing the phenomenon of short circuit between wires. ● If it is not enamelled wire, use other insulationResulting in a large difference in the variation of unit period voltage/current will also lead to differences in loss and efficiency, so the choice of inductors at this time is reasonable, mainly to see whether it can get better performance under the premise of meeting the size specifications.
Electromagnetic induction is the most common working principle of wireless chargers. The transmitter generates a high frequency current through an AC power supply and an alternating magnetic field through an inductor. The inductor at the receiving end senses this magnetic field and converts it into electrical energy to charge the device. The advantage of this method is that the transmission efficiency is high and it is suitable for close charging. Electromagnetic radiation mode Electromagnetic radiationIt is a way of transmitting energy through electromagnetic waves.
The inductor L1 and the capacitor C1 have a resonant frequency of 1MHz, and because the circuit is resonant, the no-load current is small when the receiving coil is not near the transmitting coil. The receiving end also adopts the mode of resonance, which can maximize the transmission efficiency of energy, and the direct current is obtained by the filtered capacitor after the Schottky diode is rectified, and the charging current is above 0.6A. If the coil is made into a barrel shape, the transmission efficiency will be higher.
Under the best working condition, the charging current can reach more than 0.6A.The design of the coil can also affect the transmission efficiency, for example, using a barrel coil can further improve efficiency. When the receiving coil is away from the transmitting coil, the no-load current is about 30mA, and when the receiving coil is close, the current in the charging state can be raised to about 350mA, so in order to prevent overheating, the field effect tube needs to be equipped with a radiator.
2, Apple's original magnetic wireless charger is not easy to damage a product, Apple launched wireless charging after the Apple 13 mobile phone series, convenient users for this charger or 10 points recognize the original price is more expensive, but the quality is really very good, not easy to damage, user satisfaction is still extremely high, I hope mine can help you.
3, Apple mobile phone using wireless charger charging will not cause damage to the mobile phone battery, the real damage to the mobile phone battery is the charging habit, nothing to do with what equipment to charge. You can use it with confidence. The most important thing that affects the battery life is the charge and discharge cycle of the mobile phone battery, that is, the process of the mobile phone from no electricity to full, and then from no electricity to full.
4, wireless charging it is just a new way of charging, theoretically will not damage the battery. Wireless charging technology Because the magnetic field transmits energy between the charger and the electrical device, the two are not connected by wires, so the charger and the electricity are installedNo conductive contact can be exposed.
5, generally will not, the wireless charger current is generally small, will not cause too much damage to the battery. If it is an Apple wireless charger, it will be charged 100% before discharging, and then charged again to 100%, and repeat the process until the device is unplugged. But also to master the charging time, should not be too long.
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