Thursday, September 29th, 2022 23:47:31

Wirelessly Charge Your Devices

Updated: February 14, 2015 8:00 am

The ever-increasing demand of charging of devices can now be fulfilled with a wireless technology. Time has come to kiss your wired chargers goodbye and welcome the next level of chargers

What if you can charge your smart-devices via Wi-Fi? This will be possible as a company has derived a way to charge your devices. A company called Energous has come with new wireless power system known wittily as WattUp. The company has demonstrated at Consumer Electronics Show (CES) 2015 that its new state-of-the-art product can charge smartphone wirelessly.

WattUp generally works on a mix of Bluetooth and Radio Frequencies (RF) to combine the convenience of wireless power with the security of a wireless network. he heart of WattUp is a hub that’s basically a powerful RF transmitter station. And the transmitter can deliver power within a 15-foot radius of where they are installed, creating a 30-foot envelope of wire-free charging space. Each of these power routers can charge up to 12 devices at the same time, so your power needs are truly covered. And the entire system is software controlled for flexible, accurate and efficient power delivery.

14-02-2015A WattUp-enabled system uses a multiple input, multiple output (MIMO) transmitter that sends up to 23 dBm across a 120-degree directional span, creating a 3D pocket of energy using the 900MHz (5.7-5.8GHz) RF spectrum. The power router scans the local environment with low power beams in order to determine in which directions to form beams to a particular receiver. These beams include reflected beams from walls, ceiling, floor, furniture and other inanimate objects in the vicinity. The collective converging paths of all the beams deliver the energy to the receiving device’s antennas.

WattUp software ensures that this occurs in the area that has the largest part of the converged energy pocket. For multiple receivers, the system repeats the environment scan to identify all possible and registered receivers and directs the power router’s antennas to form multiple energy pockets, each of which can power a receiver device anywhere within a 15-foot radius.

As cool as Energous’ wireless charging tech is, there’s still plenty of room for improvement. Beaming power over the airwaves isn’t quite as efficient as pumping it through a charging mat. With their current technology, Energous can achieve around 70 per cent efficiency; there’s no doubt they want to push that as close to 100 per cent as possible.

By Rohan Pal

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