Based on a cylindrical power coil, a uniform charging field gets transmitted while also fulfilling certain safety requirements. Although not a mainstay yet for power transfer, wireless chargers offer a unique and hassle-free way for charging portable electronic devices. No need for an electric outlet is required, which conventional wired chargers rely on.

But the main obstacle for creating a reliable wireless charger that is also omnidirectional is that power transfer occurs quite inefficiently owing to the fluctuating strength of the charging field in a location. Any orientation in the wrong spot wouldn’t lead to efficient results. [1]

Figure 1. The Omnidirectional Wireless Charging System for Home Use

Figure 1 shows this situation could be solved through the use of a number of transmitter coils linked to a number of energy sources for creating a powerful charging area. Nevertheless, this method will increase the complexity of the transmitter. Whereas suggestions can correctly orient the charging area, the management methods themselves are additionally sophisticated and costly.

To unravel this drawback, researchers at Aalto College have not too long ago developed an omnidirectional charging system that permits units positioned wherever round it to get charged with uniform energy. The event addresses the problem current in current energy switch system round providing a handy and dependable design for client use. [2]

Since the current flows through these windings in opposite directions, they produce complementary magnetic fields," the university explained. "One field flows out from the middle of the cylindrical coil, around the top winding, and back in through the top; the other flows out from the middle, around the bottom coil, and back in through the bottom."

What results is a ring-shaped electromagnetic field, surrounding the middle of the cylindrical charger. Any electronic devices placed anywhere within that ring will charge efficiently, regardless of their orientation or position. And the strength of the field falls within the range that is considered safe for humans.

That said, the scientists are now working on boosting its power, while ensuring that it still meets safety standards. [3]

References:

1. https://www.electronicsforu.com/special/editor-choice/omnidirectional-wireless-charging-system-home-use
2. https://electronicstechnology.in/omnidirectional-wireless-charging-system-for-home-use/
3. https://newatlas.com/electronics/cylindrical-omnidirectional-wireless-charger/

Cite this article:

Thanusri swetha J (2022), Omnidirectional Wireless Charging System for Home Use, Anatechmaz, pp. 210