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[Frank Herrmann] had an interesting idea to turn a geared DC motor into a servo motor assembly, but with a stepper motor-like interface. By stacking some small PCBs behind the motor body, it was ...

Electrical power is increasingly supplanting fossil fuels in a wide variety of applications, and electric motors are rapidly taking market share from their most widely used competitors — combustion ...

This is a preview. Log in through your library . Abstract In this paper, we prove that the space of two parameter matrix-valued BMO functions can be characterized by considering iterated commutators ...

There’s nothing revolutionary about electric bikes. Ogden Bolton Jr. was awarded the first US patent for one in 1895. His battery-powered bicycle featured a hub motor mounted inside the rear wheel, ...

Magnets, typically using rare earth metals like neodymium, are found at the heart of most electric vehicle motors. It's nice to have a permanent source of powerful rare earth magnetism in your rotor, ...

On paper, the motors from both an electric bicycle and a drone can both take about 500 watts or so of power. Of course, their different applications make them anything but equivalent, as the bike ...