This research proposes the architecture of motor driver IC for the application of small BLDC motors. Both analog and digital mixed-mode techniques are employed here to design BLDC fan motor driver IC. The controlling method of this motor driver IC mainly utilizes analog approach. Besides, in order to prevent any damages on motors due to abnormal operations, digital control circuit is also involved in this IC. This motor driver IC is used in heat-sinking fan on notebooks as well as on the motors with very small impedance, so the IC is designed to be able to work in low supply voltage, and has high driving capability at the output stage. Via the feedback signal generated by the Hall sensor, it controls the motor driver IC so that the IC can supply current accordingly to stator coil. Therefore, the purpose of controlling motors is then achieved.

For this project the main goal was to design, simulate, build and test a DC motor driver. To accomplish this four specific parts had to be design. First a DCDC converter that converts the input signal from an external power supply in a controllable DC output. The second part was a DCDC converter that converts the DC input in a voltage useful for the function generator, the third part is the function generator that provides a signal to the H-Bridge, and the final part is the H-Bridge itself. The goal is to compare the measurement with the simulations to the expectations. What we are interested in is the influence of EMF when the RPM of the motor is zero or close to zero.

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This paper explores the problem of electrical sports equipment includes 2D-animation, storage media and the safety-protection over out of control of speed and the supporting supervisory control apparatus. This paper succeeded in developing a highly efficient DSP-based motor driver system in the form of a jogging machine which employs IVSC and RISC control law. The simulation and experimental results show that the proposed system meets the requirements of servo tracking with excellent transient, steady state responses and robustness. This paper design a multi-functional FPGA uses in control system of sports equipment to provide the designing flexibility for different scales, solutions to the difficulties of production and maintenance, and the extension for future development of sports equipment.

This master's thesis deals with design electronics for an antenna rotator in two axis. There are designed and implemented drivers for two stepper motors. Was also designed and implemented control panel that allows manual control the rotator and remote control by PC via USB. At the same time created software for control panel and PC application for easy operation.

This thesis is dedicated to the automation of tests of the thermostats developed by the company Honeywell. The first chapter presents a problem of self-testing of thermostats, followed by a discussion of possible approaches to solutions. Attention is paid to testing the functionality of the HMI of thermostats, especially to the part of the system, that deals with activation of touchscteen, but no other part of the problem are omitted in the text. Discussions of the problematic passes into the design and implementation of specific design solutions. The selected design of 3D-router, which moves in three orthogonal coordinates and resembles to a coordinate drill for example. First, it describes the basic concepts of mechanic and electronic part of equipment, and subsequently is designed and implemented control electronics for mechanical activator HMI. Each of the electronics components are described in detail and values of parts are based on the calculation with the exception of finished parts. The proposal of the electronics follows the possibility of maximization of universality module for applications in similar applications. The functionality of the electronics is controlled by a microprocessor with a custom program that is described in the work. Source code of some the programs is not available because it is know-how of the company. Next part of the thesis deals with optimization of the moving of axes, optimization is done empirically by measuring. An important issue is compliance with the accuracy required position, also part of the work is devoted to the issue of calibration position. Finally is solved the continuity on the superior system. It is designed and implemented the upper layer of the communication protocol used in the company. Work is the solution of specific corporate award thesis. Although it is a very specific role of the works are generally applicable for other applications. In particular, the proposed electronic represents relatively universal controller for stepper motor control.

This diploma thesis deals with the design and construction of a three-axis CNC machine primarily designed for PCB drilling and production of front panels for various electronic devices. All three axes are driven by stepper motors NEMA 23 which are connected to stepper motor drivers L6470. Processor STM32F407 is used to control the whole machine. The wiring is completed by a LCD display with touchscreen which is used to communicate with user. Data for drilling can be entering manually or via USB inerface. Part of this thesis is the selection of a suitable construction and components, assembling equipment, wiring design of electronic circuits and writing the code to control the machine. Finally, the parameters of the designed device have been measured.