Here is how these silent workhorses behind tactile feedback generate vibration, and what sets different devices apart.

A new converter topology is proposed for driving a permanent magnet brushless DC (BLDC) motor with unipolar currents. It is based on a front-end single-ended primary inductance converter (SEPIC) and a ...

The direct back-electromotive-force (EMF) detection method previously described in a sensorless brushless dc (BLDC) motor-drive system (Proc. IEEE APEC, 2002, pp. 33-38) synchronously samples the ...