AUTOR DO BLOG ENG.ARMANDO CAVERO MIRANDA SÃO PAULO BRASIL

"OBRIGADO DEUS PELA VIDA,PELA MINHA FAMILIA,PELO TRABALHO,PELO PÃO DE CADA DIA,PROTEGENOS DO MAL"

"OBRIGADO DEUS PELA VIDA,PELA MINHA FAMILIA,PELO TRABALHO,PELO PÃO DE CADA DIA,PROTEGENOS  DO MAL"

“SE SEUS PROJETOS FOREM PARA UM ANO,SEMEIE O GRÂO.SE FOREM PARA DEZ ANOS,PLANTE UMA ÁRVORE.SE FOREM PARA CEM ANOS,EDUQUE O POVO.”

“Sixty years ago I knew everything; now I know nothing; education is a progressive discovery of our own ignorance. Will Durant”

quarta-feira, 8 de junho de 2016

A Study of Synchronous Rectifier for High Efficiency Multi Output DC-DC Converter - Hyun Jeon -Department of Electronic Engineering-Cheongju University-SOUTH KOREA

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A Study of Synchronous Rectifier for High Efficiency Multi Output DC-DC Converter Hyun Jeon Department of Electronic Engineering The Graduate School of Cheongju University. Supervised by Professor Tae-Young Ahn, Ph. D 

ABSTRACT
 This paper proposed synchronous rectifier in forward converter including resonance reset did not get efficiency drive waveform for that is existent dead time period. Therefore, proposed synchronous rectifier of new way accordingly to solve problem by happened drive circuit. Confirmed usefulness and practicality by drive circuit that compose experiment circuit and propose through experiment result. Input voltage of experiment circuit are 380V, and output voltage are 12V, and maximum output current is 20A, and maximum output was 100W. And, to report the experimental results the core losses of VRM inductor. The VRM, that has a output voltage 1.5V, output current 60A, maximum power of 90W. Experimental results verify, the VRM has a almost same data of fast transient response, a efficiency test with high flux and ferrite inductor. A maximum power conversion efficiency of the experimental VRM was measured at 92% within 0.2% load regulation.
LINK THESIS
http://www.mediafire.com/download/52qg4cob6q5s12k/Synchronous_Rectifier_Converter_DC-DC.pdf

A STUDY ON AN AC/AC POWER CONVERTER WITH VOLTAGE REGULATION -JEONG-SIK KANG-DEPARTMENT OF ELECTRICAL ENGINEERING -YOSU NATIONAL UNIVERSITY-SOUTH KOREA



A STUDY ON AN AC/AC POWER CONVERTER WITH VOLTAGE REGULATION -JEONG-SIK KANG-DEPARTMENT OF ELECTRICAL ENGINEERING -YOSU NATIONAL UNIVERSITY-SOUTH KOREA
AUTHOR: JEON-SIK KANG

THESIS FOR THE DEGREE OF MASTER OF SCIENCE DEPARTMENT OF ELECTRICAL ENGINEERING.-GRADUATE SCHOOL YOSU NATIONAL UNIVERSITY
LINK THESIS
http://www.mediafire.com/download/zwd8449cu3y1s89/AC-AC_POWER_CONVERTER__PWM.pdf

terça-feira, 7 de junho de 2016

DESIGN AND IMPLEMENTATION OF DIGITAL DIMMING ELECTRONIC BALLAST -Advisor: He Jinman Graduate Student: Wang Ming Shan-CHUN YUAN CHRISTIAN UNIVERSITY



DESIGN AND IMPLEMENTATION OF DIGITAL DIMMING ELECTRONIC BALLAST
Advisor: He Jinman Graduate Student: Wang Ming Shan China 2002 CHUN YUAN CHRISTIAN UNIVERSITY .

Abstract
 This thesis aims to present the design and practice of a digital electronic ballast for fluorescent lamps. It introduces the characteristics of lamp, DC/DC converter, power factor correction circuit IC 6561, and resonant circuit IC 6574, The electronic ballast is developed by using IC 6561and IC 6574, and other circuits to meet the need for high power factor, long lamp life, high luminous efficiency, and dimming control. Also the circuit operation principle, analysis of carefully designed circuit parameters, practical consideration of self-excitation, and dimming control are explained in detail .The test of real design is carried out at last, and the result shows the proposed digital electronic ballast can fulfill the design purposes.
LINK THESIS
http://www.mediafire.com/download/fl51c3045sjz2wp/DIGITAL_DIMMING_BALLAST_ELECTRONICS.pdf

3-Phase Hybrid Series Active Power Filter System with Instantaneous Voltage Compensation (Seok - Woo Han) - Ph.D Program in Department of Electrical Engineering The Graduate School of Konkuk University-SOUTH KOREA


3-Phase Hybrid Series Active Power Filter System with Instantaneous Voltage Compensation 
Seok - Woo Han
 Ph .D Program in Department of Electrical Engineering The Graduate School of Konkuk University (Under the Supervision of Prof . Gyu - Ha Choe ) 
 A B S T RA CT 
This paper present s the 3- phase hybrid series active filter in order to compensate for harmonics currents , voltage fluctuating and voltage unbalance in power systems . The electric power systems are based on an alternating current and voltage which are sinusoidal in nature. Computers and sensitive electronic control equipment in industrial and commercial plants demand a high quality electric power supply . With significant development of power electronics technology , the proliferation of nonlinear loads such as static power converters has deteriorated power quality in power systems . Notably , nonlinear loads resulted in harmonic distortion , become a serious problem in many industrial equipment . Therefore, utility power quality has become an important issue recently .
LINK THESIS
http://www.mediafire.com/download/8b7v24px90xxd2u/3-Phase_Hybrid_Series_Active_Power_Filter_System.pdf

DEVELOPMENT AND APPLICATION OF PWM CONVERTERS WITH SOFT-SWITCHING CELLS -JIN-CHYUAN HUNG - INSTITUTE OF ELECTRICAL ENGINEERING TAIWAN REPUBLIC OF CHINA




DEVELOPMENT AND APPLICATION OF PWM CONVERTERS WITH SOFT-SWITCHING CELLS -JIN-CHYUAN HUNG

A DISSERTATION SUBMITTED TO INSTITUTE OF ELECTRICAL ENGINEERING

COLLEGE OF ENGINEERING- NATIONAL CHUNG CHENG UNIVERSITY
IN PARTIAL FULFILLMENT OF THE REQUIRIMENTS FOR THE DEGREE OF DOCTOR
OF PHILOSOPHY IN ELECTRICAL ENGINEERING
JANUARY 2005- TAIWAN,REPUBLIC OF CHINA

LINK FULL THESIS
http://www.mediafire.com/download/8fr063typgw3v3c/PWM_CONVERTER_SOFT_SWITCHING_CELL.pdf

segunda-feira, 6 de junho de 2016

A Novel Design of an Adaptive PID Controller for Cardiac Pacemaker Achu Govind K. Aravind Sekhar Vinod B.- Dept. of Electronics and Communication, Mohandas College of Engineering, Kerala University, Trivandrum- Kerala, India



Abstract
 Biomedical engineering deals with the application of various concepts of engineering in the field of medicine and biology mainly for health care purposes thereby improving patients quality of life. Out of the various techniques, the primary focus is to develop a reliable and optimized technique for electro simulation of heart. The present work deals with an improvement in the design of control system for regulating the heart rate of a pacemaker in an efficient way. An Adaptive PID controller based on the Delta rule and Adaptive Correction Factor is proposed in this paper. The Adaptive PID controller is implemented using an Adaptive Loop incorporating MIT rule with the Delta rule. The PID parameters are modified by an Adaptive Correction Factor. Simulation results were performed on the developed cardiovascular system of humans and results show that the proposed adaptive PID controller produces superior control performance than conventional PID controller. Simulations were done in Matlab/Simulink.
 Keywords: Adaptive PID Controller, Adaptive Correction Factor, MIT Rule, Delta Rule, Pacemaker, Heart Rate.
LINK ORIGINAL NA WEB
http://www.ijsr.net/archive/v3i10/T0NUMTQyOTE%3D.pdf
LINK ALTERNATIVO NA WEB

segunda-feira, 30 de maio de 2016

INTRODUCTION TO NUCLEAR ENGINEERING Pohang University of Science and Technology John C. Lee 원자력공학개론 포항공과대학교 John C. Lee- SOUTH KOREA


This course will cover an introduction to nuclear power plants, interaction of radiation with matter, neutron cross sections, diffusion theory, criticality calculations, reactor kinetics, neutron slowing down theory, heat transport and temperature distribution in reactor core, and reactivity feedback.
 주제분류 공학 >정밀ㆍ에너지 >원자력공학 강의학기 2012년 1학기

 LINK ORIGINAL
http://kocw.net/home/search/kemView.do?kemId=425745&ar=relateCourse

quinta-feira, 26 de maio de 2016

Lec24 電子學(二) 第六章 Single-Stage Integrated-Circuit Amplifiers-NCTU OPENCOURSEWARE-National Chiao Tung University -TAIWAN


Lec01 電子學(二) 第四章 MOS Field-Effect Transistors (MOSFETs) de nctuocw 1:18:04
 Lec02 電子學(二) 第四章 MOS Field-Effect Transistors (MOSFETs) de nctuocw 55:29
 Lec03 電子學(二) 第四章 MOS Field-Effect Transistors (MOSFETs) de nctuocw 1:28:16
 Lec04 電子學(二) 第四章 MOS Field-Effect Transistors (MOSFETs) de nctuocw 51:12
 Lec05 電子學(二) 第四章 MOS Field-Effect Transistors (MOSFETs) de nctuocw 1:26:46
 Lec06 電子學(二) 第四章 MOS Field-Effect Transistors (MOSFETs) de nctuocw 38:59
 Lec07 電子學(二) 第五章 Bipolar Junction Transistors (BJTs) de nctuocw 1:32:40
 Lec08 電子學(二) 第五章 Bipolar Junction Transistors (BJTs) de nctuocw 52:20
 Lec09 電子學(二) 第五章 Bipolar Junction Transistors (BJTs) de nctuocw 1:30:03
 Lec10 電子學(二) 第五章 Bipolar Junction Transistors (BJTs) de nctuocw 49:41
 Lec11 電子學(二) 第五章 Bipolar Junction Transistors (BJTs) de nctuocw 1:23:42
 Lec12 電子學(二) 第五章 Bipolar Junction Transistors (BJTs) de nctuocw 1:20:21
 Lec13 電子學(二) 第五章 Bipolar Junction Transistors (BJTs) de nctuocw 40:58
 Lec14 電子學(二) 第五章 Bipolar Junction Transistors (BJTs) de nctuocw 1:17:10
 Lec15 電子學(二) 第五章 Bipolar Junction Transistors (BJTs) de nctuocw 40:56
 Lec16 電子學(二) 第五章 Bipolar Junction Transistors (BJTs) de nctuocw 44:12
 Lec17 電子學(二) 第五章 Bipolar Junction Transistors (BJTs) de nctuocw 1:35:34
 Lec18 電子學(二) 第五章 Bipolar Junction Transistors (BJTs) de nctuocw 46:18 L
LINK ORIGINAL FULL COURSE
https://www.youtube.com/playlist?list=PLj6E8qlqmkFulM8zMGlKrq7Wm4AJpdJa1

Lec10 電子學(二) 第五章 Bipolar Junction Transistors (BJTs)-NCTU OPENCOURSEWARE-National Chiao Tung University -TAIWAN




第五章 Bipolar Junction Transistors (BJTs) (4/14) 授課教師:電子物理系 陳振芳教授 課程資訊:http://ocw.nctu.edu.tw/course_detail....