Contactless dynamo powering bike safety lights

As you will see, the electric circuit is really simple and contains only 3 bright red leds and a 4700uF capacitor. The capacitor is used just to keep one of the leds steady while you are driving. The other two leds will be blinking as the magnets pass by the coil. To have all three leds blinking you can remove the capacitor if you want. If you decide to place some more capacitors in parallel, the steady led should keep on even when you're stopped.
Complete project: http://www.instructables.com/id/Contactless-dynamo-powering-bike-safety-lights/

Category:

People & Blogs

Tags:

• contactless
• dynamo
• generator
• bike
• leds

[myfcr]

the best I've seen with HDD magnets, which is the name of the song?

[videpi854]

Thanks! The song is Panjabi MC Mundian To Bach Ke

[1cheo]

++ for the music and the idea!

[bobalong131]

Nice video but I honestly expected you to wire it to a bomb or something with the music you had going.



[mccunecp]

great and wonderfull video I have been working on a trike project and have been looking for stuff like led head lights and the ones I see are way to much and suck I have taken flash lights and have made my fround blinkers and rear tail lights and used a 3 watt flash light and put in a head light for my head light system and man its working great onces I have it all goign I will post some videos love yours man keep up the videos thanks.

[FR3AK60]

Where can I buy some of these coils? I can't find any place that sells them, anybody know of a place?

[NONSPAN]

do you know any other places I can get coils out?

[DownhillAllTheWay]

What was the rated voltage of the relay coil you used?

[VerystrangeMaster]

hahaha, who's the man ?

[khompressor]

wow that is genius!

i wish i remember my physics