using a coil and magnet to power an LED

[Gerhard]

Take the guts out of this:

http://www.sharperimage.com/us/en/catalog/productdetails/sku__DK013ZZZ

and you have what you need. Moving magnet, coil, LED, let there be -
shake shake shake - light!

Have a look at this site http://www.freelights.co.uk/
"Batteryless Bicycle Flashing Light System"
"A Non-Friction Bicycle Dynamo (Generator)"
Kits available from as low as 4(UK Pound).

Their marketing hype wording was drafted by a lawyer,
no friction, but there must be a drag

While on the topic, see two related and intersting bicycle light sites
http://www.pedalite.com/
http://www.turbospoke.com/products.asp

Gerhard v d Berg
CSIR

 

[HangingJester]

Lukas Louw wrote:


A battery...

And a simple pressure operated switch.

 

[Anna Banana]

Hi,

I am interested in using a coil and a moving magnet to briefly light up an
LED. I have only a basic understanding of electronics.

Does anyone have any advice on what parts or circuit I would use to
accomplish this?

Thanks,

Mike
Seattle

Keep in mind that it is change in magnetic flux density that induces the
most currents, not merely moving the coil and field relative to each other.
Perhaps this means keeping your magnet outside the coil, but it could be
argued so many ways.. best to experiment in this case.

Anna