29 Jul '16, 11am

3-Phase BLDC Motor Controller will Run you $20 in Parts

3-Phase BLDC Motor Controller will Run you $20 in Parts

If you’re an active shopper on RC websites, you’ll find tiny motors spec’ed at hundreds of watts while weighing just a few grams, like this one . Sadly, their complementary motor controllers are designed to drive them at a high speed, which means we can only hit that “520-watt” power spec by operating in a max-speed-minimum-torque configuration. Sure, that configuration is just fine for rc plane and multicopter enthusiasts, but for roboticists looking to drive these bldc motors in a low-speed-high-torque configuration, the searches come up blank. The days in the dust are coming to an end though! [Cameron] has been hard at work at a low cost, closed-loop controller for the robotics community that will take a conventional BLDC airplane motor and transform it into a high end servo motor. Best of all, the entire package will only run you about $20 in parts–including the positi...

Full article: http://hackaday.com/2016/07/29/3-phase-bldc-motor-control...

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