Stepper Motors Uncovered ( 1 ) Part 1 : stepper motor fundamentals
نویسنده
چکیده
36 Elektor Electronics 11/2003 Often a mechanical operation is required in an application to accurately position a load or device. While a conventional DC or AC motor can be used, it is difficult to determine the exact position of the load, motor speed, or how much total motion has been produced, unless external positioning sensors, encoders, servo loops, and controlling devices (brakes or clutches) are used.
منابع مشابه
Nonlinear Adaptive Control of a Permanent Magnet Stepper Motor
This paper considers adaptive position control of a permanent magnet (PM) stepper motor using exact linearization via static state-feedback. Physical outputs are chosen in such a way that the resulting closed-loop system is linearized and decoupled. The objective of the adaptive controller for a PM stepper motor is to achieve output tracking between the motor outputs and prescribed reference si...
متن کاملPositioning Control of Pm Stepper Motor Based on Type-2 Fuzzy Robust Control
Permanent Magnet (PM) stepper motors are widely used in accurate systems which are affected by external disturbances and parameters uncertainty. Also, an appropriate nonlinear controller is needed when the problem is to track the reference signal. In this paper, a robust adaptive controller is presented to control rotor angular position in stepper motors. The main idea to make a robust controll...
متن کاملStepper motor and driver selection
Figure 1. Pull-out torque and output power for a 57 mm PM stepper driven by a unipolar L/R-driver and a NJM3770A bipolar constant current driver. Stepper motors are used in many different types of applications this makes it difficult to recommend a general step-by-step design flow chart. The design process is more an iterative process, involving experience, calculation and experimentation. The ...
متن کاملA Novel Vector Control Strategy For Bipolar Stepper Motor
The requirement of precise control in servo applications used in the digital systems led to the development of stepper motors. The precise and zero backlash operation of steppers extended its reach to various position control applications. The lack of requirement of sensors for position control applications was one of the main reasons for preferring stepper motors. Since the stepper motors were...
متن کاملPosition Control of Permanent Magnet Stepper Motor Considering Model Uncertainty Using Typ
Permanent Magnet (PM) stepper motors are widely used in precise systems which are affected by external disturbances, parameters uncertainty and saturated control. Also, an appropriate nonlinear controller is required when the problem is to track reference signal. This paper presents a robust adaptive controller to control rotor angular position in stepper motors. The main idea to make a robust ...
متن کامل