How wireless charging completely solves the problem of device charging

Imagine that your smartphone has 1% of power left. In order to ensure the normal use of the phone, you must find the charging cable immediately. It must also be a charging cable that matches the charging interface of the phone. Then connect your phone and plug it in. On the socket.

There is no problem with this process, but it is more troublesome. Especially when you want to make an important call or reply to an urgent email, you can't find the charging cable or the jack does not match the charger. It can only be like an ant on a hot pot. .

Once and for all wireless charging

As another kind of figurative extension of future life, wireless charging completely solves the problem of charging equipment. By transmitting power from the transmitter to the receiver through an electromagnetic field, the battery can be charged without a physical connection. And all this is due to the wireless charger.

Today, more and more devices support wireless charging. include:

Smartphones and wearables

Notebook and tablet

Power tools and service robots, such as vacuum cleaners

Drones and electric toys

Medical equipment

Car charger

In addition to the advantages of no need to plug in the device and no plug compatibility issues, wireless charging does not have a bare electrical connector, making the charging process safer . In addition, in harsh environments , such as drilling and mining environments, wireless charging can overcome various obstacles and increase safety .

What's more , wireless charging satisfies people's energy for the device anytime, anywhere , whether in a car or in a public place . Moreover, wireless charging avoids messy wires and cables and can charge multiple devices at the same time.

Well, I have said so many advantages about the irreplaceable wireless charging, is it to raise everyone's interest? Below, Xiaobian wants to enter the focus of today's topic, let us talk about the relationship between Infineon and wireless charging.

Deep digging: the black technology behind black technology

Currently, there are two wireless charging standards on the market: electromagnetic induction and magnetic resonance . As a member of the Wireless Power Consortium and the AirFuel Alliance, Infineon is able to offer wireless charging solutions for both standards and proactively build future wireless charging trends.

Electromagnetic induction wireless charging

Both the Qi standard and the electromagnetic induction AirFuel of the Wireless Charging Alliance support single-coil and multi-coil topologies with oscillation frequencies between 100 and 300 kHz, which is the main solution on the market today. Their widespread use is due to their excellent price/performance ratio. Magnetic induction always relies on in-band communication.

Magnetic resonance wireless charging

AirFuel also offers a resonant technique that operates at 6.78MHz. The advantage is better user friendliness because you can freely place your mobile device near the transmitter (usually up to 30 mm vertical height) and charge multiple devices of different sizes and powers simultaneously. AirFuel resonance uses low power Bluetooth communication.

Wireless charging applications face many challenges

Today, engineers are looking for the right semiconductor solution to overcome the common challenges in wireless charging applications. First, engineers need efficient and easy-to-design transmitter solutions. Intelligent thermal management is essential to keep the surface of the device and the transmitter at the right temperature and to avoid heating the battery being charged. Miniaturization is especially important, especially for small devices, such as wearable devices, which can ensure faster charging speeds and better meet the needs of consumers through high charging power.

Infineon makes wireless charging shine into reality

So the problem is, in the face of the challenges of wireless charging applications, in addition to the "strongest brain" of engineers, reliable hardware technology is also essential. As the world's leading semiconductor supplier, Infineon offers a wide range of semiconductor devices and reference designs to help designers overcome challenges. Whether it's electromagnetic induction or magnetic resonance charging technology, Infineon-inside solutions can help you get it~

Infineon will bring you more advantages:

High-performance products with the best price/performance ratio in the industry, including cost-effective packaging, and leading, reliable and proven silicon technology

Lowest switching loss and conduction losses in small package MOSFE and Power Stages for high power density

Reduce switching losses in hard switching topologies

State-of-the-art driver IC optimized for silicon MOSFET characteristics - extended gate driver window, dead time control, internal no clips resulting in lower losses

Provides a variety of ready-to-use reference designs to accelerate product development for inverters, adapters/chargers

In short, compared to the black technology - wireless charging, Infineon's energy-efficient devices are the real black technology behind, providing engineers with high-performance solutions in both electromagnetic induction and magnetic resonance.