1. What is a motor controller
Motor controller is an integrated circuit that controls the direction, speed, angle and response time of a motor through active work.
In electric vehicles, the engine controller plays a vital role in converting the electrical energy stored in the battery into electrical energy required to drive the engine, based on the instructions received from the gear, accelerator and brake. This allows the controller to control the driving state of the electric vehicle, including starting, operating, forward and reverse speed, climbing force, and also assists in braking by storing part of the energy in the power battery.
Therefore, the motor controller is considered one of the main components of electric vehicles.
By combining with stepper motor driver and stepper motor, a CNC programmable stepper motor controller can form an efficient stepper motor control system that can control the time-sharing operation of three stepper motors. This controller adopts computer programming language and offers a variety of instructions including input, output and counting. It has the advantage of flexible programming, wide adaptability and can be used in various fields of control automation.
2. Difference between Motor Controller and Driver
A motor driver and motor controller are an integral part of motor operations, but they have different functions. A motor driver is a hardware device or circuit that powers the motor by converting input signals into the required voltage and current. In contrast, the motor controller is a more complex device, often including a driver, that manages all aspects of the motor's operation, such as speed control, direction, and torque regulation. Both are necessary for optimal engine performance.
1) Different subjects
Controller:
A controller is a master command device that controls the starting, speed regulation, braking and reversing of a motor. This is achieved by changing the wiring of the main circuit or control circuit and changing the resistance value in the circuit based on a predetermined sequence.
Stepper Driver:
A stepper motor driver is an actuator that converts an electrical pulse into angular displacement.
2) Different features
Controller:
A controller consists of a program counter, instruction register, instruction decoder, timing generator and operation controller. It serves as a “decision-making body” that issues commands and coordinates the functioning of the entire computer system.
Stepper Driver:
When a stepper motor driver receives a pulse signal, it drives the stepper motor to rotate a fixed angle (known as the “step angle”) in the specified direction. Rotation occurs step by step at a constant angle.
3) Different principles
Controller:
An electromagnetic suction cup controller operates using a 380V AC voltage, which is stepped down by a transformer, rectified by a rectifier, and converted to 110V DC before entering the suction cup via the control device. This magnetizes the suction cup. During degaussing, the reverse voltage line is connected and the controller achieves the degaussing function.
Stepper Driver:
The angular displacement of a stepper motor can be precisely controlled by adjusting the number of pulses. This allows for precise positioning of the motor. Furthermore, the speed and acceleration of motor rotation can be controlled by adjusting the pulse frequency, thus achieving speed regulation and precise positioning.
