New Expertise Eliminates Need for Power Cables

So imagine how convenient it would be if power cables could get replaced by beamed power. Wireless power transmission is not new. In the modern period, the reason for the resurgence of interest in power without cables is that information communications implemented using Bluetooth and WiFi have highlighted how convenient it would be if the power cables could even get replaced by wireless.

Currently there’s seven ways to transmit power wirelessly.

Radio Waves: This expertise builds on the same kind of technologies used in Bluetooth and WiFi to transmit power. One company has already demonstrated that this expertise can transmit mill watts of power over distances of 15 meters.

Lasers: Here infra red laser beams are beamed at photocells that convert the light in to electricity. This has been used to power such items as loud speakers and lamps. There is very tiny falloff of laser power over distance, so considerable distances could separate the laser from what it was charging.

Magnetic Induction: Whilst the first one technology are suitable for devices that use low amounts of power, magnetic induction can be used to transmit large amounts of power.

This expertise creates a magnetic field by passing a current through a coil. Sony has already demonstrated an entirely wireless powered TV and Intel is also applying the expertise to various consumer items.

The implications of high power energy beams are not fully understood and it is feasible that there is long term effects of being exposed to high energy magnetic fields; definitely there’s potential dangers for people fitted with pacemakers.