Intel preps wireless power laptop tech for 2016
Wireless charging and WiGig could mean computing without wires, says
Awireless charging system that packs enough power to replenish a laptop battery should hit the market in 2016, helping realise the longheld dream of a cable-free desk, according to Intel. The chipmaker is developing a system that can handle up to 20W of power – about four times the amount available from the wireless charging mats already available for some smartphones.
At the IFA trade show in Berlin, the company demonstrated a wireless charging unit that can be attached to the underside of a desk and send power to devices sitting on the desk. It charged two smartphones simultaneously and, with them moved out of the charging zone, a convertible PC.
The charging station sends energy through up to 5cm of desk to an area about 20cm in diameter. It wasn’t very difficult to find the spot, although sometimes devices needed a slight nudge to begin charging. But then, it is still a prototype.
Intel said it is working with equipment makers on the technology and expects to see a series of announcements through 2016.
Competing technologies
A lack of compatibility between competing technologies has dogged the rollout of wireless charging technology in smartphones, but the industry is coming together around two competing standards.
The Intel device is based on a magnetic resonance system that is the result of a merger between two former competitors, the Alliance for Wireless Power and the Power Matters Alliance. Their competitor remains the Qi alliance.
Wireless charging was demonstrated alongside another wireless technology: WiGig. The wireless gigabit standard is currently supported by devices from HP and Dell and provides a gigabit-speed wireless data link between computer and hub. Peripherals such as monitors, hard disks and keyboards are connected to the hub and the link to the PC is maintained over the air.
The WiGig link remained strong over about 5m during the demonstration, so people will have a small degree of mobility inside a home or office.
Martyn Williams