1, electric field coupling wireless charging mobile phone wireless charging line circle number , does not use the coil for electromagnetic induction Mobile phone wireless charging line circle number , but directly through the charging base and the capacitor formed between the electrical device to be charged in the high-frequency electric field, that is, through the vertical directionThe inductive electric field generated by coupling two sets of asymmetric dipoles can transmit power, which has the advantages of low cost and low alignment requirement. But there are not many actual products.
2, the number of wireless charging coils is based on the number and size of the charging device to be charged. In theory, the more coils there are, the more efficiently the device can be charged, because the device can receive the charge at any location. However, if the number of coils is too large, it will increase the cost and volume, which is not practical or economical. Therefore, the appropriate number of coils should be selected according to different charging needs.
3. No. Per wirelessCharging coils will have a certain amount of energy loss, increasing the number of coils will lead to a decline in the overall charging efficiency, more coils will increase the energy loss and mutual interference, thus reducing the efficiency of wireless charging; And increasing the number of coils requires more coils and associated circuits to be installed in the device, which increases design complexity and cost.
4, 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 short-wave radio coil, the high frequency transformer coil of the liquid crystal display lighting circuit, etcUse multiple strands of wire and wind them.
5, secondly, because the inside of the mobile phone is very compact, so the internal coil used to cut the magnetic field line is generally not large, need to be in some specific positions to accurately charge, so if it is a single coil wireless charger, pay attention to the specific position of the mobile phone, so that the charger coil and the mobile phone internal coil as far as possible overlap, so that the highest efficiency and the fastest, If it is a multi-coil, it can be placed anywhere within the coverage of the coil.
Whether it is Huawei, Xiaomi or Apple phone, thisCharging the device will be more efficient because the device can receive the charge at any location. However, if the number of coils is too large, it will increase the cost and volume, which is not practical or economical. Therefore, the appropriate number of coils should be selected according to different charging needs.
No. Each wireless charging coil will have a certain amount of energy loss, increasing the number of coils will lead to a decrease in the overall charging efficiency, more coils will increase the energy loss and mutual interference, thus reducing the efficiency of wireless charging; And increasing the number of coils requires more coils and associated circuits to be installed in the device, which increases design complexity and cost.
Magnetic resonance charging, the principle is the same as the resonance principle of sound. Coils of the same vibration frequency arranged in a magnetic field can exchange energy with each other. If the coil is large enough, long-distance transmission is also possible, but high efficiency, miniaturization is more difficult.
According to the principles of physics, the stronger the electromagnetic coil will emit the stronger the magnetic field, and then the reception of the mobile phone is also related, the stronger the magnetic field, then the ability to charge will be stronger.
Wireless charging base to increase the coil, or do not modify it, you increase the coil not only did not play a good effect but affect the speed of chargingIncreasing the coil is equal to increasing the resistance, it will make the current slow, the coil is proportionally wound, too much or too little can not, the coil is wound less, there will be damage to the parts, resulting in parts burned spark, because do not be free to modify the wireless charging base.
is the greater the inductance. The larger the wire diameter, the smaller the resistance. These are designed to reduce the current if you increase it.