We know that the rated rotational speed of an industrial motor is based on two fixed factors: the number of poles and the supply frequency. So if you install a 4-pole, 480V motor in a 480V, 60Hz ...

Whether you're a motor designer/builder or buyer/user, understanding how the efficiency of brushless DC motors is improved with the use of Hall-effect sensors is important to your building and/or ...

A Z-source Inverter (ZSI) is a DC-to-AC converter that can perform both buck and boost functions as a single stage. A unique attempt of ZSI is the shoot through state, by which two switches of the ...

It ‘s worth noting that back EMF plays a critical role as a natural current limiter during normal motor operation. When motor ...

Capacitive-commutation techniques now replace optical and Hall-effect circuitry in brushless-dc motors. • Capacitive sensing offers low operating currents, broad programmability, excellent temperature ...

Among the mechanical components that go into the design of the world’s two million different kinds of medical devices, consider the motor to be an unsung hero. Embedded inside a medical device, the ...