The Principle of Wireless Charging Coil
Wireless charging is through near-field induction, the wireless charging device conducts energy to the charging terminal device, and the terminal device converts the received energy into electrical energy and stores it in the device’s battery. The principle of energy conduction is inductive coupling, which can ensure no exposed conductive interface, which not only saves the messy transmission lines between devices, but also makes it safer for electronic devices such as electric toothbrushes that are often in contact with conductive media such as liquids. People are developing new things more often to deal with the inconvenience brought by smartphones, and wireless chargers are the result of this pressure. So what is the working principle of the new wireless charging coil product?
The principle of wireless charging coil is to use electromagnetic wave induction and related communication induction technology, and use corresponding coils at the sending and receiving ends to send and receive inductive communication signals for charging, as long as the host with the coil receiving the signal can be completed. Wireless charging, single-layer fine hollow coil, mostly used for short-wave and medium-wave circuits. If the wire is thicker and the single-layer fine air-core coil with a smaller coil diameter can be wound without a bobbin, the multi-layer fine air-core coil can obtain a relatively large inductance, but the volume is large and the distributed capacitance is also large. In general, the inductance of the single-layer fine hollow wire of the wireless charging coil is small. If you want to reduce the coil size and get more inductance, you can consider choosing an inductance coil with a magnetic core structure.
What are the principle forms of wireless charging coils? Now there are three main forms of wireless charging: 1. Electromagnetic induction wireless charging 2. Magnetic field resonance wireless charging 3. Radio wave wireless charging. Because the loss of wireless charging in the transmission process is relative to wired charging Large, and with the increase of the interval, the loss will be greater, so in the current commercial cases, various types of wireless charging coils are used in different wireless charging products. The wireless charging coil produced by Jinhaode Technology uses common magnetic material technology and process technology, and uses a unique metal soft magnetic sheet. It not only has the “thin” and “light” characteristics of the coil unit, but also ensures the original impact resistance, which has a great advantage in reliability.
