Whether in the office, on vacation or at home, the search for a cable to charge your smartphone or tablet can quickly turn into a nightmare … At Erogenous, we decided to solve the problem with wireless charging , but especially at a distance! The manufacturer has presented different products from its partners who integrate its Watt Up technology. These include hearing aids by Delight, Uzi Blade connected glasses , or connected tags to attach to his business to find them more easily, as well as those of the manufacturer Qubercomm. Even Deutsche Telecom is in the game, with a box that contains a medium distance transmitter, capable of charging devices up to 30 centimeters.
Erogenous technologies are divided into three categories. The first is the charge in the immediate vicinity ( Near Field ), less than 10 centimeters. This method can deliver up to 15 watts of electrical power. Then comes the medium distance charge ( Mid Field ), up to one meter. The firm imagines, for example, integrating a base inside a speaker placed on the desk that could power devices around. The last is the long distance charge, beyond one meter and up to 4.5 meters (15 feet).
WattUp will soon charge smartphones
The Near Field system uses a base on which the objects to be loaded are laid, and looks at first sight to magnetic induction, like the Qi technology that already equips many smartphones. But the three different WattUp transmitters operate by radio waves , which greatly modifies the possible applications . With the wireless system, the induction coils of the transmitter and the receiver must be aligned. In addition, the receiver uses a coil that occupies a large part of the internal surface of the smartphone. In the case of wireless wave charging, the constraints are different. The receiver consists of a chip that can integrate into many small devices. The shape and positioning of the devices do not change the load.
The most interesting information came from Energous CEO Steve Rizzone, as he told our colleagues at VentureBeat that ” this technology will include a smartphone “. The firm would have a contract with a smartphone manufacturer to integrate WattUp into a future model. The terms of the contract and the famous confidentiality clause would however prevent it from indicating which manufacturer, or to give a provisional date. He did, however, mention the development of a Far Field model , up to 4 meters, which could arrive as early as 2020.
A WattUp charging station would not be limited to only the smartphone. The base is able to connect Bluetooth to other nearby devices to know which ones to feed, thus avoiding also to charge the equipment of its neighbor. It allows to connect an unlimited number of devices simultaneously, can provide different powers depending on the case, and give priority to some. Only one base could automatically feed all devices in one room.What to allow everyone, at home or in an office room, to recharge his tablet or smartphone without searching for his cable.
WattUp wants to recharge the batteries wirelessly … and remotely
A start-up named Energous has developed a wireless charging technique capable of transmitting 10 W over a distance of 4.5 m even if the user moves. What to charge the batteries of smartphones and tablets but also all home electronics. The commercial launch is scheduled for next year.Imagine that once you arrive at your home or workplace, your mobile device will take charge of itself, as it does to connect to a WiFi access point . This technical feat is becoming a reality thanks to the work of several companies and research laboratories that are working on different solutions.
In this race, a young North American startup , Energous , hopes to prevail with its technology that can charge smartphones , tablets but also all electronic gadgets (remote controls, wireless devices, home automation sensors …) through a wireless transmission. Called WattUp , this charging method uses a transmitter equipped with a multitude of small antennas that send radio waves to a receiver, in this case an outer shell into which the mobile terminal is slid.
The receiver picks up the waves and converts them into DC power to charge the battery. The system, still in prototype state, can charge two devices simultaneously by delivering 10 W over a maximum distance of 4.5 m. The other advantage of WattUp is that the load runs in this perimeter even if the user moves.
WattUp loses 80% of the energy transmitted for recharging
The concept is attractive, but still suffers from several technical limitations. First, the battery charging time is twice as long as with a wired charger. The disadvantage could be compensated if this type of system became as widespread as the WiFi access points, in which case the devices would reload according to the places in which they are (home, work, shops, public places …) .
In addition, WattUp delivers only 20% of the power that the transmitter retrieves via an electrical outlet. There is therefore a considerable waste to which consumers will necessarily be sensitive … Energous still has some work to do before being ready for commercialization. This is planned for 2015. Initially, WattUp will be offered in the form of external shells to be associated with the transmitter via Bluetooth link. They will cost between 75 and 125 dollars (between 55 and 91 euros) while the transmitter will be worth about 220 euros.Several Energous partners will be present at the next Consumer Electronics Show with the first products. Ultimately, the start-up wants to miniaturize its technology to integrate directly into the devices.