Eric Giler demos wireless electricity. WiTricity. WiTricity is an American engineering company that manufactures devices for wireless energy transfer using resonant energy transfer (oscillating magnetic fields). History[edit] The term WiTricity was used for a project that took place at MIT, led by Marin Soljačić in 2007.[1][2] The MIT researchers successfully demonstrated the ability to power a 60 watt light bulb wirelessly, using two 5-turn copper coils of 60 cm (24 in) diameter, that were 2 m (7 ft) away, at roughly 45% efficiency.[3] The coils were designed to resonate together at 9.9 MHz (≈ wavelength 30 m) and were oriented along the same axis. One was connected inductively to a power source, and the other one to a bulb. The setup powered the bulb on, even when the direct line of sight was blocked using a wooden panel.
Researchers were able to power a 60 watt light bulb at roughly 90% efficiency at a distance of 3 feet[citation needed]. The research project was spun off into a private company, also called WiTricity. Technology[edit] WiTricity Corp. Home — Wireless Electricity Delivered Over Distance. TMC and WiTricity Form Wireless Battery-charging Alliance | TOYOTA MOTOR CORPORATION GLOBAL WEBSITE. Apr. 27, 2011 Toyota City, Japan, April 27, 2011—Toyota Motor Corporation (TMC) has entered into a technological collaboration agreement with Massachusetts, United States based WiTricity Corporation * concerning the practical application of automotive wireless charging systems and the promotion of their widespread use. TMC plans to participate in a WiTricity capital increase. WiTricity's charging technology uses resonance, which allows charging without direct contact and is more efficient than electromagnetic-induction, another wireless technology—but one that requires contact—that is starting to come of age in mobile phone and other chargers.
TMC believes that resonance wireless charging is suitable for automobiles and aims for its early practical use. The collaboration is aimed to accelerate development and eventual implementation of wireless charging for automobiles. . * website: Wireless Resonant Energy Link (WREL) Demo - Intel® Software Network.