How does a brushless motor work?

How does a brushless motor work?

The brushless DC motor consists of a motor body and a driver, and is a typical mechatronic product. Because the brushless DC motor operates in a self-controlled manner, it will not add a starting winding to the rotor like a synchronous motor with heavy-load starting under variable frequency speed regulation, nor will it cause oscillation and loss of step when the load changes suddenly. The permanent magnets of small and medium-capacity brushless DC motors are now mostly made of rare-earth neodymium-iron-boron (Nd-Fe-B) materials with high magnetic energy levels. Therefore, the volume of the rare earth permanent magnet brushless motor is reduced by one frame size compared with the three-phase asynchronous motor of the same capacity.

2022-03-14

Tengfei talks about brushless DC motors

Tengfei talks about brushless DC motors

The brushless DC motor consists of a motor body and a driver, and is a typical mechatronic product. A brushless motor refers to a motor without brushes and commutators (or collector rings), also known as commutatorless motors. As early as the 19th century, when the motor was born, the practical motor produced was the brushless form, that is, the AC squirrel-cage asynchronous motor, which has been widely used. However, asynchronous motors have many insurmountable defects, so that the development of motor technology is slow. In the middle of the last century, the transistor was born, so the DC brushless motor that uses the transistor commutation circuit to replace the brush and the commutator came into being. This new brushless motor, called an electronically commutated DC motor, overcomes the shortcomings of the first generation of brushless motors.

2022-03-14

Popularity of RC

Popularity of RC

Let me popularize RC first. In fact, it is the toy car that everyone thinks is the remote control plane, remote control car. Most of the real RC models are played by adults, such as aircraft models, car models, etc., ranging from a few hundred. Thousands, as many as tens of thousands or even hundreds of thousands, so they are toys that local tyrants can only play with. Currently, the most played are generally car models.

2022-03-14

car model

car model

A car model is a scale model made in strict accordance with the shape, structure, color, and even interior parts of the real car. According to incomplete statistics, in the past 90 years, car factories around the world have launched tens of thousands of models of car models, breaking the monopoly of European and American production and collection of car models, and gradually developed into a kind of car model that is popular all over the world. Collection and investment projects.

2022-03-14

RC remote control model

RC remote control model

Many people think the RC is a children's toy, but it is not. RC is the abbreviation of English Remote Control, and RC Remote Control cars follow strict scale restrictions, both in the body size and Control effect, have a high degree of imitation, which is far from Remote Control toys can do. Unlike the static simulation car model, which pursues high degree of reduction, the RC remote control model pays more attention to the vehicle's motion performance and attitude. The swing arm, connecting rod, vibration absorber and even differential work in the same way as the real car.

2022-03-14

RC remote control model

RC remote control model

Many people think the RC is a children's toy, but it is not. RC is the abbreviation of English Remote Control, and RC Remote Control cars follow strict scale restrictions, both in the body size and Control effect, have a high degree of imitation, which is far from Remote Control toys can do. Unlike the static simulation car model, which pursues high degree of reduction, the RC remote control model pays more attention to the vehicle's motion performance and attitude. The swing arm, connecting rod, vibration absorber and even differential work in the same way as the real car.

2022-01-21

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