scholarly journals Diseño de una Placa de Entrenamiento de Microcontroladores PIC16F877A para la Asignatura de Control de Procesos con Microcontroladores de la carrera de Ingeniería en Mecatrónica en la Universidad Tecnológica Fidel Velázquez

2019 ◽  
pp. 8-13
Author(s):  
Carlos Hernández-Borja ◽  
José Bernardo Torres-Valle ◽  
Edebaldo Peza-Ortiz ◽  
Enrique García-Trinidad
Keyword(s):  
Motor Control ◽  
Process Control ◽  
Direct Current ◽  
Serial Communication ◽  
Voltage Source ◽  
Communication Interface ◽  
The Subject ◽  
Industrial Maintenance ◽  
Engineering Career ◽  
Academic Area

This paper presents the design of a training plate with the microcontroller PIC16F877A of the Microchip brand, which will support the internship, mainly, in the subject of Process Control with Microcontrollers of the Mechatronics Engineering career of the Industrial Maintenance and Mechatronics Academic Division from Fidel Velázquez University (UTFV). With the design of this plaque and its future construction, students and professors of the aforementioned academic area career will have a more accessible tool so that they can carry out the practices of each of the subjects covered by the signature. The board is basically composed of a direct current (CD) voltage source, the socket that mounts the PIC16F877A microcontroller, a programming and debugging module, the RS-232 and I2C serial communication interface, eight LED indicators, a matrix keypad 3x4, a buzzer, two modules with three displays of seven segments each, a 16x2 LCD screen, an H bridge, for motor control and an eight relay module.

EXEELFS (Extended Electron Energy Loss Fine Structure) Study of Tin Grown by the DC Sputtering Technique.

2000 ◽  
Vol 6 (S2) ◽  
pp. 226-227
Author(s):  
Duarte-Moller A. ◽  
F. Espinosa-Maganña ◽  
R. Martínez-S´anchez ◽  
O. Contreras
Keyword(s):  
Energy Loss ◽  
Direct Current ◽  
Physical Vapor Deposition ◽  
Standard Procedure ◽  
High Energy ◽  
Structure Study ◽  
Voltage Source ◽  
Titanium Target ◽  
High Voltage Source ◽  
Mechanical Pump

Titanium nitride coatings were grown in a physical vapor deposition system assisted by a direct current reactive magnetron sputtering technique. The vacuum chamber was evacuated with a mechanical pump and cryopump to a base pressure of 10-7 Torr. The Sputtering was performed with a direct current high voltage source (0-1 Kev and 1 A) on a titanium target (99.98% purity). The titanium target was sputtered with a high purity argon -nitrogen mixture. The films were deposited on monocrystalline silicon (mc-Si) (111) substrates at different nitrogen partial pressures from 0.08 mTorr to 1.5 mTorr. Total pressure, power applied to target and substrate temperature were keep constant in all the experiments.EXEELFS analysis were done using the standard procedure [1,2]. In this case, we are find that the atomic concentration is in good agreement with the respective established stoichioinetry N/T=0.99. Figure 1 shows the window of high energy loss where appears their respective N K-edge and Ti -L23.

scholarly journals "REAL" ENGINEERING FOR A MULTI-DISCIPLINARY 1ST YEAR PROJECT/DESIGN COURSE APSC100

2011 ◽  
Author(s):  
Barrie Jackson
Keyword(s):  
Broad Spectrum ◽  
Chemical Processes ◽  
Modern World ◽  
First Year ◽  
Project Design ◽  
Basic Sciences ◽  
First Year Students ◽  
Career Experience ◽  
The Subject ◽  
Engineering Career

Queen’s University has a common first year for engineering. A few years ago a project/design course was introduced, APSC100, which has been quite successful. It was predicated on the fact that students who are attracted to engineering are really excited about the possibility of “doing engineering” early in their student experience. The design of Chemical processes is something that few if any first year students have any appreciation of. We are in the process of developing a project for APSC100 which will introduce the subject as well as have the students work with a commercial FlowSheet simulator. We believe that simulators “warts and all (1)” can be an excellent learning tool, and exposure to these programs is essential as they have become so much a part of today’s engineering career experience. Commercial Flowsheet simulators continue to be a challenge for people with many years familiarity with these systems. There is however a potential for a great deal of learning about the “design process” by the use of these tools, provided these tools are presented in such a way as to be challenging but not intimidating. The paper will describe the approach to developing the APSC100 module, the challenges faced and the anticipated solutions. One particular problem will be developing something that will interest a broad spectrum of students. It has been noted that “Chemistry” often seems to be a subject that is avoided by many. This module will hopefully demonstrate the fact that “Chemistry” is one of the basic sciences and how it is the basis for much of the product of the modern world. Since this is a “work-in-progress” we anticipate and welcome suggestions as to how to present a successful module to our students.

scholarly journals A controller for brushless direct current electric motors. Part 2. Software

2020 ◽  
Author(s):  
Zenon Syroka
Keyword(s):  
Motor Control ◽  
Direct Current ◽  
Control Method ◽  
Electric Motors ◽  
Brushless Motors ◽  
Control Module ◽  
Brushless Motor ◽  
Data Bus ◽  
Control Modules ◽  
Universal Controller

A universal controller for brushless direct current (BLDC) motors was designed in the presented article. The system is controlled from the user console where operating parameters are set by the user. Signals are transmitted by cables to microcontrollers which control and monitor electric motors. Microprocessors communicate via a data bus. The controller contains the user console module and the motor control module. The user console module generates commands, and motors are controlled and monitored by the control module. Motor control modules operate independently, and each brushless motor has a dedicated control module. Brushless motors can be controlled in bipolar or unipolar mode. The control method is selected by the operator. The user console and motor controllers communicate via the I²C bus.  

The Design of USB Protocol Layer Based on FPGA

2014 ◽  
Vol 644-650 ◽  
pp. 3730-3733
Author(s):  
Chun Lei Xu
Keyword(s):  
Serial Communication ◽  
Universal Serial Bus ◽  
Digital Products ◽  
Communication Interface ◽  
Design And Implementation ◽  
The Core ◽  
Usb Device

Universal serial bus is put forward by seven corporations which are led by the Intel. It cost lowly, fast and easily expandable. USB is widely used in serial communication interface, widely used in computer peripherals and digital products. The USB protocol layer is the core unit of the USB device, which handles most of the contents of the USB protocol provides. This paper studies USB protocol layer design and implementation. Then USB protocol layer is completed based on FPGA.

Adaptive neuronal induction motor control with an 84‐pulse voltage source converter

2020 ◽  
Author(s):  
Francisco Beltran‐Carbajal ◽  
Ruben Tapia‐Olvera ◽  
Antonio Valderrabano‐Gonzalez ◽  
Irvin Lopez‐Garcia
Keyword(s):  
Motor Control ◽  
Induction Motor ◽  
Pulse Voltage ◽  
Voltage Source ◽  
Voltage Source Converter
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