Electrical Engineering › Section Z · AC motors › Topic Z.5
Specialized, synchro, and AC commutator motors
Beyond the big families of synchronous and induction motors lie machines built for one job: the cheap fan motor, the low-inertia servo, the silent clock drive, the synchro that sends an angle down a wire, and the universal motor screaming inside a drill.
In this topic
- Motors for particular jobs
- The shaded-pole motor
- The two-phase ac servo motor
- Hysteresis motors and eddy-current drives
- Synchros: sending an angle down a wire
- Worked example: synchro stator voltages
- Differential synchros and control transformers
- Worked example: a ship's radar display
- The resolver
- AC commutator and universal motors
- Common mistakes to avoid
- Key takeaways
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