18 year-old electrical engineering student wows with levitating light
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18 year-old engineering student Chris Rieger has spent the last 6 months building his LevLight system, where an LED light module floats in mid-air while wirelessly receiving its power from a coil hidden inside a wooden box
The drive coil and wireless mechanism are hidden inside a wooden box raised on two cardboard box columns and, with the power switched on, the LED light floats in the space underneath
The wireless power transfer setup consists of a single wire ring connected to the power source (a hacked benchtop unit made from an old 350W PSU and banana plug ports) and pulling 0.5A at 12V
LevLight uses a low power LED positioned on the bottom of a permanent magnet surrounded by a wireless power transfer circuit
Circuit magician Chris Rieger
Hidden inside the box: a single wire ring connected to a power supply for the wireless transfer of power and a huge electromagnetic drive coil for levitating the LED light module underneath
Using electromagnets to float objects in mid-air is almost certain to be received with open-mouthed wonder and demand closer inspection from the curious minds of young and old alike
Rieger's hacked 350W PSU with banana plug ports is used to power LevLight
Article Summary
The inclusion of a floating lamp, bed or just about any appropriately-sized household object in a room is almost certain to be received with open-mouthed wonder and demand closer inspection from the curious minds of young and old alike. Add the wireless transfer of power into the mix and you're guaranteed to have a winner. Such is the case with 18 year-old Chris Rieger's LevLight. It's not exactly huge, doesn't break any new ground in a technical sense and is more functional than flashy. Nevertheless, the floating LED is quite the visual feast.
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