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How does a Samsung Wireless Charger work?

The Wireless Charging Pad is Samsung’s wireless charger for mobile devices. This sci-fi style tech leaves many people wondering: how does a Samsung wireless charger work? We can help with that!

With a unique flying saucer style, the wireless charging pad looks futuristic and almost looks like a small landing pad. The wireless charging pad measures just under 4 inches wide and is less than an inch thick. A rubber pad is used on the bottom of the wireless charger to help it stay stationary wherever you have it placed. Once everything is plugged in and configured, you can simply set your phone on the charging pad and it will begin to charge wirelessly.

In order to be able to verify that your phone is charging on the Samsung wireless charging pad a circular LED light display lights up indicating to you that your phone is currently charging. The light lights up blue when your phone is in the process of charging and it turns green once your phone is completely charged. One downfall for some is that during the day it is harder to see the LEDs, although you are still able to clearly distinguish between blue and green. If you are sensitive to light in the dark, it may not be best to place the charging station near your bed.

Since most wireless chargers all charge at about the same rate, many people have been speculating if the Samsung Wireless charger is worth the premium price when compared to other brands. Users have complained about the S6 not being able to stick properly to the charging pad and falling off. Other users have complained that the rubber on the bottom of the charging pad does not function as intended. These are all valid concerns and should be evaluated when deciding if the Samsung wireless charger is right for you.

The science bit: How does a Samsung Wireless Charger work?

As you might imagine, wireless charging is just a little bit technical. I mean, we’re not exactly rubbing two sticks together to make fire (though lord knows how that works). So suffice to say there’s a fairly small pool of humans alive today who know everything about how wireless charging works, but here are the basics – without getting too technical.

The key to wireless charging is the use of two coils of wire around a magnet – one in the charger and one in the device being charged. When alternating current is passed through the charger coil at a particular frequency it generates a fluctuating electromagnetic field. So simple so far, right? Granny geek could handle this on her day off.

When the coil in the device (in this case a Samsung phone) is moved into the electromagnetic field of the base charger a current is induced in the second coil. This explains why this kind of charging is also called induction charging. The coil in the receiving device acts kind of like a sponge, soaking up the energy held in the electromagnetic field. That energy is then fed into the device’s battery.

Nikola Tesla built this tower for his project called “World Wireless”. But it was never finished.

Induction charging has been around for decades (electric toothbrushes for example!) and even Nikola Tesla was experimenting with it back in the 1890’s! It’s not been until relatively recently however that miniaturisation has made wireless charging for small, relatively flat devices possible.

Wireless charging has a way to go yet though. The Samsung Wireless Charger effectively uses the same technology as all other consumer grade wireless chargers on the market which means it’s range and power transfer capabilities are very limited (though perfectly functional for its intended use). In time, the use of meta-materials, resonant inductive coupling and other as yet undiscovered technologies will no doubt extend the range, efficiency and power of wireless charging devices.

Traditional vs. Wireless

Wireless charging is a new feature that is being tested by current users and will surely be improved upon as consumers reveal the faults of the wireless charging technology. The wireless charging technology brings the modern convenience of not having to deal with tangle-prone cords into the hands of those who have had it with not so flawless traditional wall chargers.

Phones are available with charging coils already installed inside – but not all of them. As of right now, the companies involved in wireless charging technologies have not determined and settled on wireless charging standards across the board. As wireless charging developers begin to settle on a single set of standards for wireless charging, the refining process can then begin, are more and more wireless charging features will be developed on phones and chargers. Businesses such as Starbucks are already offering wireless chargers to their coffee patrons so that they can reap the benefits of charging their devices while they drink their beverages. Just set the device down on the charging pad and well, this is how a Samsung wireless charger works!

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