bicycle dynamo rectifier and regulator

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Step 1: What you need and where to find them

anorris5 says: May 9, 2012. 11:44 PM

Did you build a circuit board - or is it possible to do this with wires?

anorris5 says: May 8, 2012. 5:40 AM

I don't know much about electronics, and hope you don't mind a question :

Will this 5v voltage regulator do, I can get it from a local store. But it does say 1A, whereas my dynamo is higher.

http://www.maplin.co.uk/1a-low-dropout-fixed-positive-voltage-regulator-46321?c=froogle&u=46321&t=module

man-of-light (author) in reply to anorris5May 8, 2012. 12:34 PM

thanks for your comments. yes the 7805 from maplin will do the job.
most bicycle dynamo's i've seen are rated 3 watts 6 volts, and power(watts)=current(amps)xvoltage(volts)
so that makes the current half an amp or 500mA

anorris5 says: May 7, 2012. 5:48 AM

This is great, and love how you explain where they can be found from old parts.

Idea: This could be of use in the developing world where they need power for their mobiles. They could make them using your guide from old scrap parts?

zazenergy says: Aug 30, 2011. 10:06 AM

I love biking, but I'm not sure what this is! Could you add a few sentences describing what we're looking at and why you made it? I think that would be seriously helpful to the community at large. Thanks!

man-of-light (author) in reply to zazenergyAug 30, 2011. 5:31 PM

thanks again zazenergy, glad you love biking, i added a few more lines of explanation, and will continue to, to ensure anyone interested can build one of these for themselves.