How Wireless Charging Technology is Reshaping the EV Industry?

Wireless charging is a convenient way to charge an electric car since it eliminates the need for a long, heavy cable to attach to a plug point to charge the battery.

FREMONT, CA: Electric vehicles require charging facilities to recharge the battery that powers the car. Wireless charging for electric vehicles is an intriguing technology that makes charging electric vehicles convenient. Home, private, and public charging stations are the three types of charging stations.

How does wireless charging for electric cars work?

The battery begins to charge when the electric car is parked in a charging slot equipped with wireless charging technology. Wireless charging is enabled by coils deployed below the parking area that produce an alternating magnetic field. Coils will be fitted in an electric automobile with wireless charging to create electricity from the alternating magnetic field.

The vehicle that is parked above the charging station is equipped with a wireless charger. The wireless charging station then receives high-frequency electricity.

The alternating magnetic fields are formed, and electricity is generated in the car's nearby coils. A rectifier (AC-DC converter) converts the produced electricity into DC and provides power to the battery.

Wireless charging technology

Without a direct-wired connection, energy can be transmitted from one location to another. Wireless charging technology is available in various forms.

Inductive wireless charging

Mutual induction is similar to a transformer that lies at the heart of wireless energy transfer. The convenience of using a wireless charger for mobile phones has made them quite popular. In a coil that is kept in an alternating magnetic field, electricity is induced. By delivering alternating current to the coil, an alternating magnetic field is created.

The coil's size is determined by the frequency of the alternating current in the coil. A high-frequency current, for example, aids in reducing the number of turns in the coil while maintaining the same flux density.

Capacitive wireless charging

There is another wireless charging technology that is dependent on capacitance. Capacitive wireless charging is the term for it. Rather than using mutual induction, electrostatic power transfer is used in this procedure. A capacitor plate is placed on the road, and other plates will be installed at the bottom of the electric vehicle.

The electrostatic effect transfers electric power from the charging station to the battery. The charging station sends power to the battery through high-frequency AC.

Resonant inductive coupling

It is a customized variant of inductive charging in which the charging range is a few meters compared to the low range of inductive charging.

The process of electric vehicle wireless charging that is most widely utilized is resonant inductive charging. Two copper coils are used to transfer energy in resonant inductive charging. Both coils are adjusted to the same electromagnetic frequency, and one of them will be powered by an external source. The energy will then be transmitted to the other coil, set to the same frequency as the first.

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