The rapid development of the controller makes the motor control level continue to improve, from the earliest resistance type cumbersome control, evolution to the analog control circuit composed of electronic components. Later, it was the application-specific integrated circuit, and the control technology was quite handy. Now the DSP special control technology has been developed to make the motor control reach a higher level.
If the motor is a brush motor, the controller is much simpler, because it does not need to be commutated, the motor itself can be commutated, and the winding will produce a magnetic field corresponding to the magnetic steel in different positions. Therefore, the controller does not need the commutation power circuit and its devices. In addition, because the motor has no sensor, the microprocessor does not need to process the sensing signal, and the integrated circuit is simple.
Brushless DC motor controller. Whether it is a brushless motor with a high-speed rotating disk armature and gear reduction, or a low-speed brushless motor with an external magnetic steel rotor, its controller is more complicated and the price is higher. Its microprocessor chip itself is more complex than the brushless DC motor chip, and it needs enough switching tubes to assemble a commutation circuit.
If it is a brush motor, the controller is much simpler, because it does not need to be commutated, the motor itself can be commutated, and the winding will produce a magnetic field corresponding to the magnetic steel in different positions. Therefore, the controller does not need the commutation power circuit and its devices. In addition, because the motor has no sensor, the microprocessor does not need to process the sensing signal, and the integrated circuit is simple.
To sum up: The so-called intelligent controller, most of them have a single chip microcomputer (microprocessor) to control, non-intelligent controller, most of them are digital integrated circuits (pulse width control), most of the intelligent controller's memory because there is control data written in it, only for a certain model of interchangeability is poor, and ordinary brush motor controller, because there is no memory to write data, The control principle is mostly controlled by the pulse width (including current, voltage limiting, etc.), in addition to the power volume is different, most of the same voltage, the same power can be used in emergency.
There are exceptions, such as the light riding card TDH018 brush motor controller, also using a microprocessor controller, because the controller with other controllers can not be interchangeable, if the ordinary controller, the car can only control the motor rotation, other power, speed locking, voltage monitoring can not be used, but the controller is exclusive production, change a controller to 120 yuan!
Intelligent controllers, most of them have single-chip computers (microprocessors) to control, non-intelligent controllers, most of them are digital integrated circuits (pulse width control), most of the intelligent controllers because of the control data written in the memory, only for a certain model of interchangeability is poor, and ordinary brush motor controllers, because there is no memory to write data, The control principle is mostly controlled by the pulse width (including current, voltage limiting, etc.), in addition to the power volume is different, most of the same voltage, the same power can be used in emergency.
Intelligent controllers, most of them have single chip computers (microprocessors) to control, non-intelligent controllers, most of them are digital integrated circuits (pulse width control), most of the intelligent controllers because of the control data written in the memory, only for a certain model of interchangeability is poor, and ordinary brush motor controllers, because there is no memory to write data, The control principle is mostly controlled by the pulse width (including current, voltage limiting, etc.), in addition to the power volume is different, most of the same voltage, the same power can be used in emergency.