Different Types of Motors

TL;DR

Brushed motors and brushless motors are two types of drone motors, with brushless motors being more powerful and durable.

Transcript

good day everyone in our previous lecture we looked at the role that a motor plays in a drone however there are different types of motors that are available in the market in our present lecture let's look at the two types of drone motors for beginners there are two types of drone motors which are used brushed and brushless motors they vary in the w... Read More

Key Insights

• 🧑‍🦼 Brushless motors are more powerful and efficient than brushed motors, making them ideal for drones.
• 🧑‍🦼 Brushed motors are better suited for micro drones due to their size and simple driving techniques.
• 😩 Brushless motors last longer and have no brushes that wear out.
• 🧑‍🦼 Brushless motors require control electronics to operate effectively.
• ✊ Brushless motors are commonly used in mini and micro multicopter applications for their power and efficiency.
• 👨‍💻 Brushless motors are identified by a four-digit code representing the stator's dimensions.
• ✋ Brushless motors are preferred for their high torque, which is crucial for propeller control in quadcopters.

Questions & Answers

Q: What is the difference between brushed and brushless motors?

Brushless motors are more efficient (85-90%) compared to brushed motors (75-80%). Brushless motors also last longer as they have no brushes that wear out.

Q: How are brushed and brushless motors identified by size?

Brushless motors are identified by a four-digit code representing the diameter and height of the stator in millimeters. Brushed motors are identified by a simpler two-number system representing the can's diameter and height in millimeters.

Q: What type of motors do most drones use?

Most drones use brushless motors, particularly outrunner brushless motors. Outrunners generate high torque, which is essential for quadcopters' stability and propeller control.

Q: Why are brushless motors more practical for drones compared to brushed motors?

Brushless motors are more efficient, durable, and capable of generating high torque without the need for a gearbox. Additionally, brushed communication would require more wires and additional contacts.

Summary & Key Takeaways

• There are two types of drone motors: brushed and brushless.

• Brushed motors have a stator that provides a permanent magnetic field and a rotor that is an electromagnet. The rotation of the rotor is controlled by the commutator ring.

• Brushless motors have a rotor and a stator made up of electromagnets. The interaction between the stator and rotor magnets creates rotational movement.