Wireless power has the potential to be very useful, but range is a major hurdle. In a new proof-of-concept project, Ericsson and PowerLight Technologies have demonstrated a technique called optical ...

Several companies have started to sell power 'pads' that can charge your cellphone when you put it on the pad's surface. But these silicon-based pads are expensive -- and relatively 'specialized.' Now ...

[mircemk] has been working on wireless power transmission. Using a Class-E Tesla coil with 12 turns on the primary and 8 turns on the secondary and a 12 volt input he can send a few milliwatts to ...

A new method developed by Disney Research for wirelessly transmitting power throughout a room enables users to charge electronic devices as seamlessly as they now connect to WiFi hotspots, eliminating ...

What just happened? The global race to beam solar energy from space directly to Earth is raging on, and Caltech scientists have seemingly scored the first goal. The SSPD-1 has successfully harvested ...

Adoption of wireless charging has been fairly slow, but it could pick up if it worked over longer distances. Now, engineers at Aalto University have developed a new system that can allow more ...

[mircemk] has been working on wireless power transmission. Using a Class-E Tesla coil with 12 turns on the primary and 8 turns on the secondary and a 12 volt input he can send a few milliwatts to ...

Wireless charging is nothing new—you may charge your phone that way every day. But in some instances, it’d be super handy to directly and regularly power devices across a gap filled with air, glass, ...

Imagine charging a device miles away without a single wire. That’s exactly what the US military’s Defense Advanced Research Projects Agency (DARPA) has just pulled off, setting a new benchmark in ...