Motors and Instruments applications in Robotics

1. Brushed DC Motors

• How they work: Simple construction with a commutator (rotating switch) and brushes to deliver current to the rotor windings.  
• Robotics Applications:
• Mobile Robots, Robotic Arms, Educational Robot, Hobby Robotics

2. Brushless DC Motors (BLDC)

• How they work: No physical brushes; electronic commutation switches current to the stator windings.  
• Robotics Applications:
• Widely used:
• High-performance robots: Drones, industrial robots, humanoid robots.  
• Advantages: Higher efficiency, longer lifespan, better speed and torque control.  

3. Servo Motors

• How they work: A type of motor with built-in position feedback (often an encoder).  
• Robotics Applications:
• Precise positioning: Robot arms, grippers, joints in humanoid robots.  
• Applications where accurate positioning is crucial: For example, in pick-and-place operations.

In Summary:

• Brushed DC Motors: Suitable for simpler robots, but limitations can hinder performance in more demanding applications.  
• BLDC Motors: The preferred choice for many robotic applications due to their superior performance and efficiency.  
• Servo Motors: Essential for robots requiring precise and controlled movements.