Compact DC to (3 phase?) AC

Old 06-04-15, 01:42 PM
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Compact DC to (3 phase?) AC


I recently found an R/C Helicopter from a long time ago, it has a (rechargeable) battery and uses an AC motor (I believe it's 3-phase). Now I'm trying to find what makes it possible to translate DC to 3-phase AC, but everything I can find is with humongous, no way that is what's in that helicopter. What am I missing? How is this heli's AC motor powered by a battery?

Cheers, Youandi
Old 06-04-15, 02:08 PM
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What leads you to believe the motor is three phase?
Old 06-04-15, 03:55 PM
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Please fill out your profile. We really need to know where you are located for good advice to be given. I seriously doubt this is 3 phase. It probably has a converter in it to convert the DC to AC, but without knowing what you have it would be difficult to tell for sure.
Old 06-04-15, 04:52 PM
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It's very likely the motor is 3 phase. If it's a brushless motor than it definitely runs on pulsed DC or 3 phase AC which is nothing more that pulsed DC. They make DC controllers that generate the 3 phases that the motor requires.

Check out this video for some good in depthy info in this matter.

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