Stepper Motors As Generators
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Uploaded by HackaweekTV on Jan 21, 2012
Yes, stepper motors make great generators. This video will give you the nuts and bolts of generating electricity with a spinning stepper motor.
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Uploader Comments (HackaweekTV)
All Comments (22)
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Nice channel, just subed!
It would have been nice to seen how much Amp the DC motor used with/with out a load...
Keep up the good work!
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@HackaweekTV thanks I will look into it. Turns out my 24v stepper isn't a stepper at all, but this info is still relevant.
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keep on!
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Those rubber couplers are really handy huh!
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Cool project. One suggestiong, put the capacitor across the bridge/load. It'll smooth out that DC waveform. You might have a little ripple but overall a much cleaner DC signal.
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how did you connect 4 coils from the stepper in only one rectifier bridge?
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All of the steppers I found are rated at 42vdc. What is the best way to get them to 12vdc once I use a bridge rectifier?
abuthemagician 1 month ago
@abuthemagician
Build a simple adjustable voltage regulator circuit with an LM317 and about four external components. The LM317 will deliver up to a 1.5 amp. For anything more than that, you'll need to use the LM138 which will deliver a maximum of 5 amps but it will need a heat sink. :)
Do a Google search for "LM 317 Calculator". Buy parts, build, enjoy your voltage. :D
HackaweekTV 3 weeks ago
Two Qs: How did you connect the four windings to the bridge? In parallel? Also, do you think it would be possible to use a small transformer to get the voltage down (current up) so a few high power leds could be used and a large cap could be charged up? Been wanting to do the bike light.
GTechno13 1 month ago
@GTechno13
You should experiment with the transformer. Yes I think it was in parallel. :)
HackaweekTV 3 weeks ago
Very neat, as usual :) By the way, what's that IC on the bac of the pig?
I guess I'm gonna have to disassemble a couple of printers....
GiorgioCapocasa 1 month ago
@GiorgioCapocasa Not sure what IC that is but it's just glued there for fun. :)
HackaweekTV 1 month ago