Mobile phone induction charger is a wireless charger, its principle is the use of electromagnetic induction principle to convert electrical energy into magnetic energy, transmission between the two coils, and finally convert magnetic energy back to electrical energy for charging.
Specifically, the mobile phone induction charger is mainly composed of two coils, one coil is called the sending coil and the other is called the receiving coil. When the transmitting coil is powered on, an alternating magnetic field is generated. If the receiving coil is placed near the sending coil, it senses an alternating magnetic field and generates an induced current. After the induced current is rectified and filtered, it can be used to charge the cell phone battery.
It should be noted that the mobile phone induction charger can only be charged within a certain distance, generally no more than a few centimeters. In addition, the phone needs to be placed on the charger and aligned with the charging coil when charging, otherwise the charging effect will be affected.
In short, the mobile phone induction charger is a convenient and wireless charging method, the principle is to use electromagnetic induction to convert electrical energy into magnetic energy for transmission, and then convert magnetic energy back to electrical energy for charging.
The principle of mobile phone induction charger is the use of magnetic induction principle.
When an alternating current passes through a coil, an alternating magnetic field is formed, and when the magnetic field passes through another coil, an induced electric potential is created in this coil.
The mobile phone induction charger transmits the current to the transmitting coil, and transmits the radio wave to the receiving coil through the magnetic field induction, so as to achieve the charging function.
Extension: Compared with the traditional charging method, the mobile phone induction charger does not need to charge through the plug and interface, and the operation is more convenient. In addition, the magnetic field generated by the induction charger is smaller when working, which is safer for human health than the traditional charging method.
This charging method has gradually become a trend in the field of smart home.
The principle of mobile phone induction charger is realized through the principle of electromagnetic induction.
The core component of the charger is a circuit board that generates a high-frequency electric field and a transmitting coil and a receiving coil.
When the current passes through the transmitting coil, an electromagnetic field will be created in the receiving coil, which will generate an induced current in the coil of the phone, thus enabling charging.
This charging method has the characteristics of safety, fast and convenient. Because its electromagnetic wave energy is similar to that of a microwave oven, this charging method is also known as wireless charging. Although this charging method can not completely replace the wired charging method, it will have broad application prospects in the future.
The principle is to use the magnetic field generated between the coils to generate an electric current and transmit it. There are two coils on the wireless charger and the mobile phone respectively. When the coil of the wireless charger is connected to the power supply, the coil plus alternating current will generate a constantly changing magnetic field. When the mobile phone is placed on the charging board, the coil on the back cover of the mobile phone will sense the change of the magnetic field, and the coil on the back cover of the mobile phone will sense the current. Then the current is converted into direct current to charge our mobile phone battery, so that wireless charging is achieved.