Hello,
I am very strong in digital electronics, but have a few weaknesses in analog. So, my question could be simple for some of you.
I am designing a Persistance of Vision clock that spins on a motor. This clock needs to have power on the spinning circuit board. I see 3 options on doing this.
1. Battery (won't last long)
2. Brushes (I don't know how reliable and long that would last)
3. Magnets on the main board with a circular pcb board that has small inductors on the bottom of it. A generator of sorts.
I am really interested in trying option 3. But, I don't know if it even worth trying. The pcb requires about 500 ma at 3.3 volts. So, I am beginning to think the best option might be 2.
Any other ideas would be much appreciated.
Thanks for your time,
Chris