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
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?