Business, Hardware

Rezence Magnetic Resonance Charging is The Future of Wireless Power

Rezence is a relatively new technology, and is the consumer-facing brand that represents the group of technologies represented by the Alliance for Wireless Power. There are currently three major wireless power alliances, for those not versed in the world of wireless power. There is the Wireless Power Consortium (WPC) which is responsible for the Qi wireless power standard, the Power Matters Alliance (PMA) and the Alliance for Wireless Power. Each of these organizations believes that they have the right idea about wireless power and there is some overlap between the three, but they are still fundamentally three different organizations. Additionally, many of their most prominent members are actually members of all three, like Qualcomm.

A demonstration of a Samsung dual mode device that can do both inductive and resonant wireless charging

Now, we had an opportunity to meet with Geoff Gordon from Qualcomm, who was representing the Alliance for Wireless Power at the Rezence booth at Mobile World Congress. He took us around their booth and gave us a few demonstrations of how their magnetic resonance charging solution was superior to others. And considering the fact that I currently use Qi heavily, I’m quite familiar with the limitations of inductive charging. What was prominently displayed at their booth were a few demos from Qualcomm, Gill Electronics, Samsung Electro-Mechanics and Samsung Electronics as well as IDT and WiTricity.

Geoff gave us a great demonstration of the technology in action and we managed to get a great idea of how much better magnetic resonance charging really is.

In addition to simply having a phone sitting on a pad, Geoff demonstrated how the very same pads that we used on the first video could be tuned for installation beneath a table without needing to make any modifications to the table itself. The way that they did this was simply by buying a regular Ikea table and then screwing the wireless charging pad underneath the tabletop. Previous technologies, like the WPC’s Qi required a much closer distance to the surface of the table, which resulted in people having to route their tables to fit the wireless charger inside of the table top. As you can see from the video below, that is not the case and the Rezence wireless charging enables not only impeccably easily installation, but it still allows for some freedom of movement.

And because the pads are designed by the standard, there are no problems with interoperability between different smartphones or multiple smartphones on the same wireless charging pad. The good thing about Rezence’s charging is that it not only defeats the thickness problem with tables and other objects that sit between the charger and the device pulling charge, but it also doesn’t have problems with any metals. Any sort of metal or magnets can and will throw off any kind of inductive charging solution, regardless of size.

The applications for resonance charging that Rezence uses are vast and almost limitless and I believe that we’ll see more and more technologies like Qualcomm’s WiPower gaining traction and attracting more people to it. With the advent of wearables and the need to have wireless charging built into wearables, I believe magnetic resonance charging is going to be the answer to the charging question. The ability to simply throw your wearables and your smartphone on a pad or even on the table with a pad installed without needing any cables really does sound like the holy grail of mobility to me.

Here we have a Gill Electronics wireless charging pad built into a car’s center console enabling wireless charging through a small tray.

Here we have a Gill Electronics wireless charging pad built into a car’s center console enabling wireless charging through a small tray.

And here we have Qualcomm’s WiPower Le, which isn’t quite officially standardized yet.

We also have a Samsung Electronics and Samsung Electro-Mechanics demo.

There is also a Witricity and IDT demo to show off some other partners of the Alliance for Wireless Power.