audioguru Well-Known Member Most Helpful Member Apr 5, 2008 #21 They calculated that the hampster wheel can generate 200mA at 2V. That is 0.4W. It is AC. It needs a rectifier and voltage stepup circuit to charge the battery in an MP3 player. The charging will take months.
They calculated that the hampster wheel can generate 200mA at 2V. That is 0.4W. It is AC. It needs a rectifier and voltage stepup circuit to charge the battery in an MP3 player. The charging will take months.
ClydeCrashKop Well-Known Member Most Helpful Member Apr 5, 2008 #22 This was in EDN magazine. **broken link removed** Maybe the wheel could ping a tuning fork at the resonant frequency of the piezo???
This was in EDN magazine. **broken link removed** Maybe the wheel could ping a tuning fork at the resonant frequency of the piezo???
H Hank Fletcher New Member Apr 5, 2008 #23 No, no, no. What you want is one of those over-unity hamsters...
killivolt Well-Known Member Apr 5, 2008 #24 Multi Hamster. Male + Female == soon you have multi tap. I just have to add this is a funny thread too. I can see the little guy go and go and ........... Last edited: Apr 6, 2008
Multi Hamster. Male + Female == soon you have multi tap. I just have to add this is a funny thread too. I can see the little guy go and go and ...........
Hero999 Banned Apr 6, 2008 #25 Use Schottky rectifiers to do the rectification, some can drop as little as 200mV, especially if you grossly oversize them. You could also add more phases which will reduce the ripple and increase the power output.
Use Schottky rectifiers to do the rectification, some can drop as little as 200mV, especially if you grossly oversize them. You could also add more phases which will reduce the ripple and increase the power output.