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Motor Basics

Motor Basics

In our motor knowledge column, you will get in-depth insights into motors and their drive technologies. We are committed to providing practical information references for engineering technicians, purchasing personnel and related practitioners to help complete motor selection and solution design more efficiently.

What are the differences between internal rotor motors and external rotor motors?
Internal rotor motors and external rotor motors differ significantly in structural design and performance, resulting in different performance characteristics and applicable scenarios. Selecting the appropriate…

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Planetary gearboxes: operating principle, components and advantages
Compared with other gearboxes, planetary gearboxes can distribute torque more evenly, thereby improving durability and transmission efficiency. Their compact design makes them particularly suitable for…

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What are the common methods for controlling the speed of a DC motor?
Controlling the speed of a DC motor plays a key role in optimizing system performance, improving energy efficiency, and achieving expected functions. Different types of…

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The main difference between spur gears and helical gears
A deeper understanding of the different characteristics between helical and spur gears will help you make a more appropriate choice based on your actual needs…

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How to choose a suitable brushed DC motor？
Selecting the right motor has a significant impact on the performance and cost of your equipment. Considering factors such as speed, torque, duty cycle, load…

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Impact of temperature rise on motor performance
Excessive temperature will cause the insulation layer of the motor winding to age rapidly, affecting the life of the motor and its safe and reliable…

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Carbon brush issues that need attention in motor maintenance
The most obvious symptoms of motor brush damage include decreased performance, loss of power, sparking, and a burning smell. The best way to determine if…

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Motor Housing Selection Guide
When purchasing a motor, one of the key things we need to know is the motor’s housing. The housing plays a key role in the…

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How to deal with common motor bearing failures?
Properly functioning bearings keep machinery and processes running efficiently, but these components are often overlooked, but when they fail, they can cause a lot of…

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How to effectively deal with motor sparks?
In the previous article, we explored in depth the generation principle of motor sparks and the potential hazards they bring. Therefore, how to effectively deal…

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Reveal the causes of motor sparks
Sparks may be caused by a variety of factors, such as voltage fluctuations, brush wear, poor contact and overload operation. These factors may cause drastic…

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Optimizing Brushless DC Motor Performance through Winding Configurations
Winding configuration significantly impacts BLDC motor performance, encompassing torque production, speed range, efficiency, and thermal behavior. Engineers must carefully select the appropriate winding design based…

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Comparison of Commutation Methods in Brushless DC Motors: Sensor vs. Sensorless
In brushless DC motors, the choice between sensor-based and sensorless commutation methods depends on factors such as cost, performance requirements, and operational requirements….

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Performance Characteristics of Brushless DC Motors
The performance characteristics of brushless DC motors, including speed, torque, and power, are critical to evaluating the motor’s performance under different operating conditions. Understanding and…

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Construction and Components of Brushless DC Motors
By understanding these components, engineers can design and optimize BLDC motors for use in applications ranging from automotive systems to aerospace technology, paving the way…

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Advantages of Brushless DC Motors over Brushed DC Motors
From improved efficiency and reliability to precise control and reduced electromagnetic interference (EMI), BLDC motors offer a host of benefits that help improve performance, extend…

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The difference between brushless DC and brushed DC motors
In the industrial field, both brushed DC motors and brushless DC motors are used. If efficiency and maintenance cost are not considered, brushed DC motors…

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How to power brushless DC motors
The brushless DC (BLDC) motor’s increasing popularity is due to the use of electronic communication. That replaces the conventional mechanics comprised of brushes rubbing on…

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How does a Brushless DC motor work
Brushless DC motors use permanent magnets similar to motors, but are constructed “from back to front.” Magnets are fixed to the rotor, and the stator…

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Overview of Brushless DC Motors
Brushless DC motors are widely used in industrial applications around the world. From the basic classification of motors, motors are mainly divided into DC motors…

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Basic knowledge of PMDC motor
The history of permanent magnet DC motors can be traced back to more than a hundred years ago. They have always existed in various electrical…

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What is DC motor Torque?
DC motors are powered by direct current, which means that the current flows in one direction only. When we choose which motor to use, the…

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DC Motors: Definition, Working Principle, Types and Applications
DC motors are widely used in industries such as industrial automation, transportation, home appliances and renewable energy due to their high efficiency, reliability and easy…

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The structure and working principle of DC motor
Although we have learned about the meaning of DC motor in the previous article, our understanding of DC motor is just the tip of the…

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Application of varistor in micro motor
A “varistor” is a resistor device with nonlinear volt-ampere characteristics. It is mainly used for voltage clamping when the circuit is subjected to overvoltage and…

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Motor Quality Directly Impacts Final Product Quality
Many industries rely on DC motors, and in the decades before the advent of DC motors, their applications were very limited. Today, many different applications…

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gear motor
How to select the suitable gear motor
There are many factors to consider when selecting a geared motor. Whether you plan to purchase a pre-engineered gear motor, or select the gearbox and…

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How to reduce the noise of DC motor?
The noise level of different mechanical equipment may be high or low, but they should all have normal scale specification values. If the noise exceeds…

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Some parameters of DC motor you should know
All DC motors are of the rotating armature type, that is, the rotor of the DC motor is composed of a magnetic pole stator consisting…

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What can we learn about vibrator motor?
A vibration motor, also called a shaker or vibrator, is an electromechanical device that converts electrical energy into mechanical vibrations and is widely used in…

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Analysis of gear drive system
The gear transmission system is a mechanical device that uses the meshing of gears to transmit power and motion. The gears mesh with each other…

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DC motor versus Servo motor
When it comes to speed control, you might think you’re choosing between an inverter-driven three-phase motor or a servo motor, but did you know that…

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Manufacturing technology characteristics of micro – gear motor
The characteristics of micro gear motors are mainly reflected in two aspects of gear motor manufacturing: one is the mechanical processing technology, and the other…

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Key points for selecting DC gear motors
The models, parameters and performance of the micro DC gear motors used in each industry and equipment are different. When selecting the model parameters of…

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Anti-electromagnetic field in a DC motor
In a DC motor, the voltage generated across the armature is called the reverse electromagnetic field in the DC motor. The reverse electromagnetic field is…

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Unveil the Mystery of Gear Motor
From robots to conveyor systems, from car wipers to hospital bed lifts, gear motors are critical to the overall performance of the equipment we rely…

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The working principle of armature in motors
The influence of armature flux on main magnetic field flux is called “armature reaction”. Armature reaction will cause changes in magnetic field distribution, thus affecting…

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The classification of gear motor
The main advantage of the gear motor is the significant increase in torque output. By reducing speed through the gearbox, the motor can provide stronger…

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What is the difference between a DC motor and an AC motor?
The principles of AC motors and DC motors are the same, both using armature windings and magnetic fields. The difference is that the armature of…

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