DC machines can be classified as self-excited, separately excited, permanent magnet (PM), and brushless. Self-excited machines can be further classified as shunt, series, and compound. Compound ...

Rather than a commutator, the patented DynaMotor (TM) electronic brushless repulsion (EBR) motor uses controlling electronic switches on a circuit board on the rotor shaft that turns with the armature ...

Stepper motors resemble servo motors in that both types are characterized by an ability to rotate a partial turn and then stop for any interval with or without holding torque. In addition, both motor ...