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Multirotor drones are popular in both hobbyist and professional circles, thanks to their versatility and performance. A key component that influences a drone’s flight capabilities is its motor type. The two main types are brushless motors and brushed motors. Understanding their differences helps enthusiasts choose the right motor for their needs.
What Are Brushless Motors?
Brushless motors, also known as BLDC motors, are electric motors that do not have brushes for commutation. Instead, they use electronic controllers to switch the current in the motor windings. This design results in higher efficiency, longer lifespan, and less maintenance compared to brushed motors.
What Are Brushed Motors?
Brushed motors are the traditional type of electric motor that uses brushes and a commutator to switch the direction of current in the windings. They are generally simpler and cheaper to produce but tend to wear out faster due to brush and commutator wear, requiring more maintenance over time.
Comparison of Performance
- Efficiency: Brushless motors are more efficient, leading to longer flight times.
- Durability: Brushless motors last longer due to fewer moving parts.
- Cost: Brushed motors are typically less expensive initially.
- Maintenance: Brushless motors require less maintenance.
- Control: Brushless motors provide smoother control and better performance at higher speeds.
Applications in Multirotor Drones
Most modern multirotor drones use brushless motors because of their superior performance and reliability. They are ideal for applications requiring longer flight times, higher speeds, and greater durability. Brushed motors may still be found in very inexpensive or toy drones, where cost is a primary concern.
Conclusion
Choosing between brushless and brushed motors depends on your drone’s purpose and budget. For serious hobbyists and professionals, brushless motors are the better choice due to their efficiency, longevity, and performance. However, for simple, low-cost projects, brushed motors can still be a viable option.