| ||Thread Tools|
|24th April 2013, 08:21||#1|
Join Date: May 2010
Rattle generator is a new type of dynamo for a bicycle
This project is in one of our favorite categories; the kind where asking “why?” is the wrong question. [Berto A.] built the device after observing some power generation by placing a large magnet next to a mechanical relay coil and quickly clicking the relay’s lever. From this humble beginning he built up the RattleGen, a bicycle spoke driven generator.
To get the most power possible he searched around for a massive relay and found one which was originally meant for telephone exchanges. He cut the case open and strapped a big bar magnet to the side of the coil. Next he fabricated an arm which will press against the relay’s lever. To that he added a small wheel which is pressed each time a spoke from the bicycle passes by it. This repeated clicking of the relay lever generates a current (and a rattling sound) that is harvested by the joule thief circuit built on some protoboard. An LED is illuminated, with excess current stored in the capacitor bank. Don’t miss the build and demonstration video after the break.
|Thread||Thread Starter||Forum||Replies||Last Post|
|TP-Link TL-WR703N specialized firmware generator||Stefan Mileschin||WebNews||0||21st January 2013 07:37|
|Hybrid Sports Bicycle eyes-on||Stefan Mileschin||WebNews||0||3rd December 2012 10:48|
|Cardboard bicycle 'close to mass production'||Stefan Mileschin||WebNews||0||17th October 2012 07:37|
|GlacialLight PalmSiren Dynamo 3 LED Torch Review||jmke||Articles & Howto's||0||17th December 2010 15:02|
|[M] GlacialLight PalmSiren Dynamo 2 Multifunctional Flashlight Review||jmke||WebNews||1||30th June 2010 13:16|
|GlacialLight PalmSiren Dynamo 2 Multifunctional Flashlight Review||jmke||Articles & Howto's||0||29th June 2010 17:53|
|Toyota Prius Doubles as Emergency Generator||jmke||WebNews||0||28th December 2008 20:01|
|Hiper Type RII 680W & Type M 780W Power Supplies||jmke||WebNews||0||22nd May 2008 12:54|
|Hiper Type R & Type M 730W Power Supplies||jmke||WebNews||0||25th November 2006 11:22|