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June 10, 2008

A battery-free remote control

Posted by EscapeDigitalMedia


SMK has a prototype TV remote that tosses out the batteries, relying on kinetic energy instead to work.

According to the literature, the channels, volume control and On/Off power switch are controlled by working a trigger on the handle. When pulled, an electromagnetic induction coil rotates at high speed by means of gears. This, in turn, generates a current of 20-30mA--sufficient to change the channel via infrared light. Two consecutive pulls will turn the TV on or off, while volume control is activated by pulling the trigger and pushing a button simultaneously

Енергия от всичко за всичко

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A battery-free remote control [crave]

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