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How to understand the principle of wireless fast charging - like the induction cooker you use

How to understand the principle of wireless fast charging - like the induction cooker you use

2025-08-05
Wireless fast charging and induction cookers, though seemingly different in purpose, share the core principle of electromagnetic induction. To understand wireless fast charging, we can draw an analogy with the familiar induction cooker.

latest company news about How to understand the principle of wireless fast charging - like the induction cooker you use 0latest company news about How to understand the principle of wireless fast charging - like the induction cooker you use 1


When an induction cooker operates, its internal coil is powered by alternating current, generating an alternating magnetic field. The conductor at the bottom of the cookware induces eddy currents within this magnetic field, and these eddy currents generate heat for cooking. Wireless fast charging works on a similar principle: the charger has a built-in transmitting coil, while devices like smartphones have a receiving coil. When the charger is powered on, the transmitting coil carries alternating current to produce an alternating magnetic field. The receiving coil, placed within this magnetic field, generates an induced current through electromagnetic induction, which is then processed by the device’s internal circuitry to charge the battery.


The key difference lies in their energy conversion goals: induction cookers convert electrical energy into heat, while wireless fast charging enables wireless transmission and storage of electrical energy. To achieve "fast charging," wireless systems optimize coil design, increase current frequency, and enhance magnetic coupling efficiency to reduce energy loss and speed up charging. This process follows the laws of electromagnetic induction, freeing electrical energy from the constraints of wires for convenient and efficient transmission.
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Blog Details
Created with Pixso. Home Created with Pixso. Blog Created with Pixso.

How to understand the principle of wireless fast charging - like the induction cooker you use

How to understand the principle of wireless fast charging - like the induction cooker you use

2025-08-05
Wireless fast charging and induction cookers, though seemingly different in purpose, share the core principle of electromagnetic induction. To understand wireless fast charging, we can draw an analogy with the familiar induction cooker.

latest company news about How to understand the principle of wireless fast charging - like the induction cooker you use 0latest company news about How to understand the principle of wireless fast charging - like the induction cooker you use 1


When an induction cooker operates, its internal coil is powered by alternating current, generating an alternating magnetic field. The conductor at the bottom of the cookware induces eddy currents within this magnetic field, and these eddy currents generate heat for cooking. Wireless fast charging works on a similar principle: the charger has a built-in transmitting coil, while devices like smartphones have a receiving coil. When the charger is powered on, the transmitting coil carries alternating current to produce an alternating magnetic field. The receiving coil, placed within this magnetic field, generates an induced current through electromagnetic induction, which is then processed by the device’s internal circuitry to charge the battery.


The key difference lies in their energy conversion goals: induction cookers convert electrical energy into heat, while wireless fast charging enables wireless transmission and storage of electrical energy. To achieve "fast charging," wireless systems optimize coil design, increase current frequency, and enhance magnetic coupling efficiency to reduce energy loss and speed up charging. This process follows the laws of electromagnetic induction, freeing electrical energy from the constraints of wires for convenient and efficient transmission.