EEE-4231 Homework # 3
Ahmet Can Altıntaş 19070005006
1-)
a) Explain the term LTT.
b) Explain the DC motor types by drawing the internal structures.
c) Explain which type DC motor is suitable for heavy load lifting.
d) Explain which type DC motor is suitable for low torque applications.
e) Explain which type DC motor is suitable for good speed regulation applications.
ANSWER:
a) LTT: Depends on context; could mean Long-Term Training, Linear Tape Technology, or other
acronyms based on the field of reference.
b) DC Motor Types:
- Brushed: Has brushes for current direction.
- Brushless (BLDC): No brushes, uses electronic controller.
-Series: High starting torque, field windings in series.
- Shunt: Good speed regulation, field windings in parallel.
- Compound: Mix of series and shunt for balanced characteristics.
c) Heavy Load Lifting: Series DC Motor.
d) Low Torque Applications: Shunt or BLDC Motor.
e) Good Speed Regulation: The Shunt DC Motor is best suited for applications requiring good
speed regulation under varying load conditions. Its parallel field winding design helps
maintain a constant speed, even when the load changes.
