Figure 5 - Typical speed curve for permanent magnet motors, with linear torque-speed proportionality. DC motor commutation can be either brushed or brushless, both of which offer specific advantages.

Two great minds in permanent-magnet-free motor design are fusing their know-how to create an even more capable inductive electric motor. Mahle and Valeo have teamed up to introduce what they call ...

Small permanent magnet motors can be used as tachometer generators in some applications. A direct current (DC) permanent magnet tachogenerator design is shown below. In this particular device, the ...

A recent study, led by Runze Jing, summarized field weakening (FW) control strategies into calculation-based methods, voltage closed-loop control methods, and model predictive control-related methods.