Direct drive motor control mode
So there is no such thing as "the frame type is the control mode of the permanent magnet synchronous motor, the no-frame type is the control mode of dc brushless motor". Perhaps your motor coincided with a particular type of "frame with permanent magnet synchronous motor control mode" or the different type of brushless dc motor control way ". In fact, permanent magnet synchronous motor control method and two kinds of brushless dc motor control method in most cases is one thing, there is not much difference.
The control board is the same as the general permanent magnet motor. The problem is you is to point to the need to control the motor start-stop, or to control the torque (your this kind of motor is primarily a torque motor), and you need to control analog or digital control. After certain, the circuit design is convenient. Need your motor driven load characteristics, work environment, such as the control response speed, accuracy, voltage, power, etc., and whether the high temperature, high humidity, high dust, high electromagnetic interference, etc., all of these have an effect on circuit design.
A direct drive motor is an electric motor that does not require a transmission mechanism, which drives the load directly. Normally this type of motor has no output shaft and is mechanically different from other motors. But there is no difference between electromagnetic structures and other motors. There is a box and an unframed simple point which means there is no shell.
