motorbbs

All of servo motor can be changed into variable speed motor. General speaking, control the motor speed and direction need a motor driver chip and other components, and servo motors have been equipped with these devices. Modified servo motor is the most common and cheapest, to get the robot used in the transmission method of digital control, thus get a continuous rotation of the servo motor. This change is partly mechanical and partly. The electrical partly is changing electrical potentiometer into two fixed resistors with resistance, mechanical changes will prevent the motor part of the full rotation of the stopper from removing. motor is precise instrument, if you have no professional knowledge, you'd better not open it.

In recent years, the servo motor control technology is moving into the exchange, digital and intelligent three directions. As executive body of CNC machine tools, servo system will integrate power electronic devices, control, drive and protection into a combination, And with advancements of the digital pulse width modulation technology, special electrical materials technology, microelectronic technology and modern control technology, it has gone from stepping into the DC motor, then to the development process of ac motor.
In addition, advanced sensor technology has greatly improved AC motor speed control system dynamic response and positioning accuracy. AC servo motor control system generally used in brushless resolver, hybrid optical encoder and absolute encoder as position, speed sensor, the sensor has a response time of less than 1μs.

According to the spot news of rare-earth permanent magnet coreless motor promotion exhibition which organized by National Development and Reform Commission in Shenzhen: rare-earth permanent magnet coreless motor developed by the Shenzhen Special Electrical Co., Ltd. Antoine Hill, coreless motor to achieve major design breakthroughs of Coreless motor designation.
Rare-earth permanent magnet coreless motor is the future direction of the motor industry on behalf of a new type of special motors, adopting non-core, brushless, non-magnetic damping, and rare earth permanent magnet power generation technology to change the structure of silicon steel sheet and winding the motor stator, combined with independent research and development electronic smart inverter technology, make the ac motor system efficiency up to 95% or more.