An adult person can produce around 100 WH of mechanical capacity while cycling, which is a not insignificant amount if you can convert that with reasonable efficiency in electricity. In a recent article on Edn [T. K. Hareendran] Is about a few ways in which you can change the rotating movement of stairs in usable electrical current.
A basic shape of this is already used on a large scale, in the form of a bicycle dynamo that is used to deliver electricity to the front and rear lights. These usually turn off something like 3 watts at 6 VAC, so with a simple bridging rigor and some smooth this can feed a nice clear LED or two. To get more out of it, you must use a more capable generator, which can also be a brushed or brushless DC engine in a pinch, with ideally a flywheel in the entire construction to balance variations in human power entry.
As for the potential here, a commercial solution such as the K-tor Power Box 50 is specified for ‘larger than’ 50 watts, with a nominal 12 VDC output. The target market are emergency generators, with sufficient power to keep telephones, radios and flashlights charged. Given the asking price of $ 435, there is probably a lot of do -self -potential spacious within that price bracket, especially if you already have many of the required parts lying around.
Fortunately, this is not a new idea, where we have treated with the help of bicycles and gym equipment to generate electricity in the past.
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