“Necessity is the mother of invention.” Imagine in the future where we do not have to use traditional and unconventional bulky charger anymore to fully charge our devices and electronic appliances to the maximum power. The older method of charging electronic gadget is very inconvenient, because our digital gadget need to be attached to cable, and plugged into the socket. This is why inductive charging or also known as wireless charging was invented, and yes, it does not require any single wire or cable. This method of charging uses an electromagnetic field to transfer energy between two different objects. From this technology, it is proven that without artificial interconnecting conductors, the transmission of energy from a device to device is still possible. The wireless transmission of energy is much common in all over the world. If you realized, radio waves are energy, and they are used by human to send and receive cell phone, television and WiFi (wireless fidelity) every day. After years by years, scientists started to develop a method of charging devices which is different from what we see today, by using the concept of wireless transfer of energy.
The idea of wireless charging may sounds futuristic, or at least interesting to know and learn about, but it is not particularly new. The concept of wireless power transmission had been proposed by a scientist named Nicole Tesla, in the late of 1800s and early 1900s. One of his experiments involved remotely powering lights, demonstrated in his lab at Colorado Springs. Tesla’ work was impressive, but it did not spread widely during his time. Since then, a lot of scientists and inventors have developed several ways to allow the transfer of electricity in a long distance without using wires. Today, the wireless charging technology has been started to be implemented on electrical devices, and electric toothbrushes are among the first to receive it.
The usage of inductive charging is very useful, especially during condition where electrical charge may cause dangerous hazard when it is used in wet place like in a bathroom or washroom. This is where wireless charging plays an important role, as the transfer of energy from one place to another without making contact with any surface. On the other hand, this technology is also useful when it comes to the situation where there is not enough socket available at the place. In one condition, especially for traveler, they may have forgotten to bring their device’s charger, so they can just use the wireless charging.
There are a few concepts are used to ensure that the wireless charging is made possible. This charging method works by inducing an electric current in a coil wire from one device, and the current are transferred wirelessly to another device. Another way is by using a tower which acts as the source of energy, and spread all of the energy from the tower to receivers, which are electrical appliances or digital gadgets. In the future, it is expected after a lot of works from developers and pioneers of this technology, that they also may allow the transfer of energy by using Bluetooth technology.
Looking at this technology, and what it can do, it’s for sure there are a lot of advantages can be squeezed from it. It is capable to act as a universal charger. Most of devices that are equipped with WiFi capability may absorb energy just in an instance they are placed in the area of wireless charging station, regardless of which brands or vendors that sold the device. This technology is also flexible, making it stands out by giving multiple choice of usage to its user. They can choose whether to use it for charging their devices, or for surfing internet, or both. Everything is at ease with this technology. The problem of not having enough electrical sockets available in the house also can be solved, because of this technology.
However, there are also some problems may come out to surface on the behalf of this technology. Inductive charging has lower efficiency compared to direct-contact charging because by the current time, the technology only allow a little amount of energy transfer from devices to devices that it might take forever to charge the devices. Furthermore, the method of charging also only made possible between devices that placed closely to the source of energy, making it difficult to charge devices from places that are much too far, even though they are still in the same building. Another drawback of the technology is its implementation use lower frequencies causing it to charge devices slowly, and while this process are still continuing, it may also generate heat in a great amount at the same time. The consequences are, devices involved in this charging method are exposed to the danger of damaged physical as they need to extent much amount heat, in a very long period.
In a nutshell, wireless or inductive charging is an impressive human invention, because it opened numbers of opportunities for us, even though there is still much to do in order to improve the technology. It is a great example of the fusion between technology and creativity. Business companies and corporations should invest more on this technology, because it has a bright future, and to make it better, a lot of researches need to be done before it is fully implemented in our daily life.