The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper presents modeling of a stepping motor with a full-step drive and design on the timing of the pulse inputs for the suppression control of vibration. When the stepping motor is shifted to the excitation phase, a torsional vibration occurs at the shaft part connecting to the motor due to an inertia load. Therefore, in the present study, a motor model considering a torsional vibration is designed...
In this paper, a robust self-tuning controller for a velocity control of permanent magnet type stepping motor is proposed.. The self-tuning theory provides a nonlinear modeling of a stepping motor drive system and could provide the controller with information regarding the reference variation, system noise, and parameter variation of the stepping motor through the on-line estimation. Thus, the proposed...
This paper presents an improved speed damping algorithm. By revealing the relation of the compensating coefficient to the speed and load torque, an optimal selection of the compensating coefficient is proposed. The vibration of the motor is reduced to a low level and the stability of the motor is guaranteed. In addition, this paper shows the implementation of a torque-based speed estimation in the...
A design of two-phase hybrid stepping motor driver with current closed-loop control based on the PIC mcu has been presented. A microstepping technique has been implemented in order to meet the requirement of constant torque and smooth movement, which adjusts the current in each winding in sinusoidal fashion. Binary and decimal subdivision are achieved by software programming in the PIC microcontroller...
In this paper, for improving the control system of some bio-chemistry analysis instrument, an approach of micro-stepping control for the step motors based on field programmable gate array (FPGA) is presented after the micro-stepping driving theory of the step motor with a constant torque was discussed deeply. And then the relative control system is schematically designed, mainly includes the internal...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.