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is it possible to use a dc motor as an alternator in an rc car? Answered

i would like to know if it is possible to use a simple dc motor as an alternator in an rc car. i know i  would need a diode, but  i don't know if it would work or not. would it?

Discussions

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lemonie

Best Answer 9 years ago

Not without rebuilding it - DC motors produce DC as generators. If you don't actually need an alternator but a DC generator will do, you could use the motor. But what would you want it for when the car has power anyway?

L

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seandoguelemonie

Answer 9 years ago

Perhaps the RC car is run using a gas engine?

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lemonieseandogue

Answer 9 years ago

Ah, yes, I'd forgotten to consider that.

L

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seandoguelemonie

Answer 9 years ago

easy to forget these days..who uses gas motors anymore? ;-)

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lemonieseandogue

Answer 9 years ago

Lots of people do, they run on nitromethane, but a battery is possibly better for this job?

L

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seandoguelemonie

Answer 9 years ago

Maybe so, but it's a neato idea...one of those "realism" things...no harm in doing it anyway...and kinda instructive from a systems POV.

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lemonieseandogue

Answer 9 years ago

Make it into a dynamo/starter, tiny lead-acid battery too...

L

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lemoniezack247

Answer 9 years ago

You could belt-drive a small motor like the one pictured, but you'd be taking power away from the wheels.
If you really wanted an electric-start you'd need a bigger motor, decent battery and a direct gearing to the crankshaft - not a good idea.

L

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Peonpowerlemonie

Answer 9 years ago

 I think that you could use a dc motor as an alternator in an rc car because it uses batteries for power, but it couldn't be one of those in the picture unless you could spin it really fast.

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lemoniePeonpower

Answer 9 years ago

DC motors don't produce AC, well not it spun in one direction anyway.

L

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zack247lemonie

Answer 9 years ago

what is an ac motor like? how big are they and how much do they cost?

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Peonpowerlemonie

Answer 9 years ago

I know, but don't RCs run on batteries, which is DC power?

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PeonpowerPeonpower

Answer 9 years ago

Oh wait that would be counter productive. I think Dc would work anyways.

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zack247lemonie

Answer 9 years ago

i want to use it a a recharger/generator for the batteries for the lights in my car im working on

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seandogue

9 years ago

technically not as an alternator, but it can be run as a generator, albeit low power.