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How can I make a generator? Answered

Ive been looking foward to making a small DC generator that I can put on the frame of my bike to power some lights.  Or, where can I find one?

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ARJOON

Best Answer 7 years ago

any toy simple 2 batteries (3v) or any electronic devices that have moving parts. such as cd player dvd driver, video cassettes, and a lot more.

If you get a motor that has only 2 wires out it will produce a dc current.
if you get a motor which has 4 or more wires coming out also known as a stepper motor then you have to play with the wires to get the best output and connect it to a rectifier to make the output dc as most stepper motors outputs ac current.
make sure u monitor the voltages and current output that meet your specifications
leds are monsters!!! use then instead of other 3v or 12v bulbs but remember to place a resister.

thake care
M

Will an old computer fan with four work?

yes but the revolution should be i high enough. it will only be able to driver a red led

You can buy bike generators and light kits made up already.

Well you didn't say you wanted to build one.

How about this one?

Or just search "bike generator" or " generator" or "stepper motor generator" or something of that genre.

If not buy a small stepper motor make a fair generator to drive LEDs and the like.