ワイヤレス給電

"Wireless power supply" has the potential to drastically change the industrial structure.


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Wireless power challenges and future
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The biggest problem with wireless charging is that it cannot be charged if the contacts on the power transmitting side and the power receiving side are out of alignment. WQC and Neotes power supply systems solve this problem.

In wireless power supply, improving the power supply efficiency is an issue. However, in general, with wireless power supply, if you try to increase the power supply efficiency, the robustness (degree of freedom of position) will decrease, and if you try to increase the robustness, the power supply efficiency will decrease. There is a trade-off between efficiency and robustness, and how to solve this is the biggest issue in the industry. "Phase synchronization" solves these conflicting problems at the same time.
What does low robustness mean? For example, with the existing wireless power supply technology for charging smartphones (standard called Qi), the positions of the power transmission side and power reception side of the smartphone placed on the power transmission pad are firmly aligned. Without it, it cannot be charged. If the position shifts even a little, heat will be generated and efficiency will drop. It is thought that its inconvenience is an obstacle to the wireless power supply of smartphones. Under these circumstances, Masakazu Ushijima invented a new method that can transmit and receive power with high efficiency (improve robustness) even when the distance or positional relationship between the power transmission coil and the power reception coil changes.

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Market size-The global wireless power supply market in 2023 will grow to 359 billion yen-
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The future society brought about by wireless power transfer
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This new wireless power supply technology not only improves the efficiency of wireless power supply to home appliances such as mobile phones, personal computers, shavers, and toothbrushes, but also dramatically in the field of autopilot robots such as robot vacuum cleaners and drones. It is expected to improve convenience. It can be applied to existing standards such as Qi to improve performance, and it is a technology that can become the de facto standard for wireless power supply. Power tools, toys, underwater robots, golf carts, senior cars, automatic guided vehicles, forklifts, slip rings, motor rotors, power supply in liquids, internal medical equipment, aircraft, rockets, missiles, various power supplies for artificial satellites, EVs, home appliances, etc. , It is expected to be applied in all kinds of fields. WQC intends to contribute to the improvement of people's lives by instilling this new technology in the world.


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Mr. Ushijima invented a new method of wireless power supply. We will further develop it in the future and aim for practical use.
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電子デバイス産業新聞 2021年10月21日 
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電子デバイス産業新聞 2021年10月28日 
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