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Unread 02-12-2013, 16:18
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Re: lightweight, inexpensive speed controllers

Quote:
Originally Posted by tilky View Post
I was interested in building a quadrocopter, the classic robot enthusiast project. I know generally what to do, except when it comes to speed controllers. The speed controllers used in FRC are way too heavy, too expensive, and require the wrong amount of voltage. I am looking for a light, inexpensive speed controller that can support a 5v input, as well as PWM functioning. Anyone have any ideas?
You'll have to provide more information to get good direction out of us

What type of motors are you looking to use, brushed DC similar to a CIM in function, or something else? Specs are very helpful.

For your application, using several power MOSFETs would be appropriate. I'd assume your propellers only need to spin in one direction (powered by DC motors), so you wouldn't have to use a full H-bridge.
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