Re: Re: Freerunner-powered bike ride
Hey My solution consists of a MOSFET rectifier bridge and a low-dropout linear voltage regulator that outputs 5 volts: http://www.iki.fi/~msmakela/electronics/dynamo5v/ a switching regulator would generate less waste heat and present less physical resistance in the dynamo. Maybe it's negligible, but it's not that much expense to upgrade from a linear regulator. I have one of these http://www.dimensionengineering.com/DE-SW050.htm that I could try once I have a hub dynamo. -- Brad ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Re: Freerunner-powered bike ride
2008/8/4 Brad Midgley [EMAIL PROTECTED]: My solution consists of a MOSFET rectifier bridge and a low-dropout linear voltage regulator that outputs 5 volts: http://www.iki.fi/~msmakela/electronics/dynamo5v/ a switching regulator would generate less waste heat and present less physical resistance in the dynamo. Maybe it's negligible, but it's not that much expense to upgrade from a linear regulator. I have one of these http://www.dimensionengineering.com/DE-SW050.htm that I could try once I have a hub dynamo. i like the idea of a generator to charge the neo, but don't like the idea of using my pedal power directly. has anyone seen any regenerative generators that replace the brakes to simultaneously slow down the bike and provide a current for charging? http://en.wikipedia.org/wiki/Regenerative_braking ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
RE: Re: Freerunner-powered bike ride
Put it on the wiki somewhere. Sounds cool. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Brad Midgley Sent: Sunday, August 03, 2008 5:08 PM To: List for Openmoko community discussion Subject: Re: Re: Freerunner-powered bike ride Hey My solution consists of a MOSFET rectifier bridge and a low-dropout linear voltage regulator that outputs 5 volts: http://www.iki.fi/~msmakela/electronics/dynamo5v/ a switching regulator would generate less waste heat and present less physical resistance in the dynamo. Maybe it's negligible, but it's not that much expense to upgrade from a linear regulator. I have one of these http://www.dimensionengineering.com/DE-SW050.htm that I could try once I have a hub dynamo. -- Brad ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Re: Freerunner-powered bike ride
Robin i like the idea of a generator to charge the neo, but don't like the idea of using my pedal power directly. Maybe for you it makes more sense to power off the screen and gps so you can get to your destination quicker :) In practice, people haven't been successful in regenerating efficiently enough to get decent power and keep it effortless to the biker. It would be more productive to put flexible solar on your backpack. -- Brad ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
