Abstract The brushless DC motor is driven by a square wave. Compared with the sinusoidal synchronous motor, control simple. airborne radar servo system described in this paper uses drive, PWM control, and angular position. speed detection feedback loop composed of resolver for digital converters. adopts current, speed, position closed-loop design. design simulation carried out using MATLAB/Simu...

The area of control system engineering that mainly deals in obtaining the robustness of system in the existence of uncertainties is known as robust control. In this paper, a graphical design method is developed for obtaining the entire range of PID controller gains that stabilize a D.C. servo plant robustly with the existence of time delays and additive uncertainty employed. This method of desi...

Sensory systems, such as computer vision, can be used to measure relative robot end-effector positions to derive feedback signals for control of end-effector positioning. The role of vision as the feedback transducer affects closed-loop dynamics, and a visual feedback control strategy is required. Vision-based robot control research has focused on vision processing issues, while control system ...

A method is described to convert information available at manipulator programming level into trajectories which are suitable for tracking by a servo control system. This process generates trajectories in real time which comply with general dynamic and kinematic constraints. Tracking accuracy will depend mainly on the acceleration demand of the nominal trajectory setpoints the actuator output de...

This report focuses on the development of an integrated servo-controller (ISC) for servomotors. Comprising of mainly servocontroller and servo-amplifier, this ISC is capable of controlling a wide range of servomotors to perform complicated tasks. Hence, integration of this ISC with a servomotor forms an intelligent modular actuator (IMA) that is essential to modern manufacturing industries. The...

This paper discusses the optimal H∞ control synthesis via discrete Riccati equations for hard disk drives (HDDs) with an irregular sampling rate. A HDD servo system with an irregular sampling rate, caused by missing position error signal sampling data, is modeled as a linear periodically timevarying (LPTV) system. An optimal H∞ track-following control algorithm for HDD servo systems with irregu...

Visual servo control schemes use visual information obtained by one or multiple cameras as the primary measurement to regulate the motion of a robot [21, 11, 12, 6]. In the last decade, a number of visual servo control schemes have been proposed that extract homography image transformations between images of a planar scenes and use these as the primary visual information for a servo control pro...

In this paper, we propose an adaptive control scheme for a class of nonlinear time-delay systems. To alleviate the requirement for accurate modeling of the plant, a two-level robust control scheme was proposed. The inner-level adaptive neural controller is responsible for accurate servo control, while the outer-level supervising controller compensates for un-modeled system dynamics and bounded ...