Principle of wireless charging

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The principle of wireless charging is that through near-field induction, the wireless charging device transfers energy to the charging terminal device, and the terminal device converts the received energy into electrical energy and stores it in the battery of the device. The principle of energy conduction is inductive coupling, which can ensure that there is no exposed conductive interface, which not only saves the messy transmission lines between devices, but also is safer for electronic devices such as electric toothbrushes that are often in contact with conductive media such as liquids.

Principle of electromagnetic induction wireless charging

Electromagnetic induction wireless charging is the most widely used wireless charging solution. As mentioned in high school physics textbooks, alternating current with a certain frequency through the primary coil is used, and electromagnetic induction is used to generate a certain current in the secondary coil, thereby transferring energy from the transmission end. To the receiving end.

Principle of Magnetic Field Resonance Wireless Charging

Magnetic field resonance wireless charging consists of an energy transmitting device and an energy receiving device. When the two devices are adjusted to the same frequency, or resonate at a specific frequency, they can exchange each other's energy, which is currently being studied. technology.

Principle of radio wave wireless charging

This is a relatively mature technology. It is similar to the mineral radio set used in the early days. It mainly consists of a microwave transmitting device and a microwave receiving device. It can capture the radio wave energy bounced from the wall and maintain a stable DC while adjusting with the load. Voltage. In this way, only a transmitter installed on the wall plug and a "mosquito-type" receiver that can be installed on any low-voltage product.

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