Originally Posted by
Ged117
Great. I'm not exactly sure how I would connect the rectifier to the batteries in the tube. Alternative: I could wire a capacitor like he used into the circuit (I'm not sure which wire / connection I would interrupt to connect it - perhaps his project is a good guide for that). Then, I could hide the parts inside the battery tube, and with the capacitor, I won't need the D cells!
There won't be room for the capacitor and the rectifier in the tube (I think). I wonder if I could put the rectifier in the tube, and the capacitor inside the headlamp somehow on a circuit board? The bulb holder might be in the way. Hmm.
Ged
If you are using batteries, there is no need for the capacitor. That is simply there to reduce the flashing that otherwise occurs when the LED is operating and the wheel is spinning. When you have batteries it won't be flashing. The rectifier will simply be charging the batteries as the wheel spins. Its important that the rectifier get no energy from the wheel if the lighting system isn't on. Otherwise you can overcharge and damage the batteries.