What is a servomotor? AC servomotors that can provide torques on the order of 100 N-m at 3000 rpm are commercially available Describe the operation of an ac servomotor that uses a two-phase induction motor. A block diagram for an ac servo motor is shown in Figure P7.39. Describe the purpose of each
Figure P7.39
![75_d6571146-d96b-4ef7-8780-bad5c33dd445.png](https://secure.tutorsglobe.com/CMSImages/75_d6571146-d96b-4ef7-8780-bad5c33dd445.png)
component in the system and explain the operation of the overall system. What are the advantages of using an ac amplifier after the inverter circuit in comparison with using a dc amplifier before the inverter circuit?