Power to a Rotating Object, Wirelessly!
There are times when an animation
includes a rotating object that needs power to light a bulb
or LED or to operate a motor or some other DC powered
traditionally been done with slip rings, a set of round
contacts and brushes. While this works the brushes or
contact surfaces need to be carefully aligned and can wear
I have been experimenting with the
circuits that are used to wirelessly charge a cell phone and
have found a very simple way to use these devices to
transfer power wirelessly to a rotating object.