A Design and Fabrication of PWM Power Amplifier for Digital Audio signal Jun-Sung, Lee Dept. of Electronical and Computer Engineering The Graduate School SungKyunKwan University

A Design and Fabrication of PWM Power
Amplifier for Digital Audio signal

Jun-Sung, Lee
Dept. of Electronical and Computer Engineering
The Graduate School
SungKyunKwan University

Amplifiers in electronics are used in a wide variety of applications in audio, video and telecommunications. Conventional amplifiers such as Class-A, Class-B, Class-AB based on linear circuit technology have good distortion characteristics, but yield poor efficiency and need large size of cooling material. On the other hand, the Class-D amplifier has good efficiency and small size, but relatively bad Total Harmonic Distortion(THD) and Signal to Noise Ratio(SNR) because of a switching mode operation. Recent researches have demonstrated the feasibility of realizing an almost complete digital audio system. The characteristics of THD and SNR of the Class-D amplifier depend on the duty ratio, rising falling and settling time of output PWM(Pulse Width Modulation) signals. This paper presents a one-chip monolithic integrated circuit(IC) of the two-channel Class-D audio power amplifier with high efficiency and lower THD using a 0.65[㎛], 40[V] bCDMOS process. Each channel can drive 50[W] power and a single channel power of 100[W] can be obtained through the external control signal. The Class-D amplifier at the output stage is controlled by generating a PWM signal. The conversion of the digital audio data to PWM pulse stream is performed by using PCM to PWM converter and results in the elimination of the THD. The results of the study are as follows: 1. The design and implementation of a 2-channel Class-D amplifier using 40[V] bCDMOS technology and the evaluation on the performance of designed class-D amplifier through fabricated wafer. ① The size of die is 3,700[㎛]×5,100[㎛]. The output power transistor occupies 60[%] of the die area. The output current driving capability and on-resistance are mainly considered features. ② The THD is 0.07[%] at 1[W] output power. ③ The Efficiency is 92[%] at 20[W] output power. The efficiency is getting worse when the output power is below 5[W] and above 35[W]. At a lower power consumption mode, the internal power takes up a larger portion of the total power. On the other hand, at a high power mode, power consumed by the resistance of bonding wire, routing metal and on-resistance of the MOS transistor are more dominant. These results are obtained by measuring selected samples out of packaged products. But, Some parts of the circuit need improvement before the mass production.
LINK
http://www.mediafire.com/view/ci41jtvncuyxdd0/PWM_POWER_AMPLIFIER.pdf

TEORIA DE CIRCUITOS ELÉCTRICOS LINEALES CON EJERCICIOS Y TAREAS Autor: MR Shebes -Теория линейных электрических цепей в упражнениях и задачах Автор: Шебес М. Р.-1967

Descripción:
 El libro proporciona un material y fórmulas teórica breve, problemas típicos con soluciones y explicaciones detalladas, para la solución de tareas independientes. Un gran número de ejemplos muestra el uso de los métodos básicos de cálculo, tal como un circuito eléctrico en las condiciones estables y transitorias. Con un número significativo de problemas resueltos con diagramas vectoriales. Las técnicas que se muestran de su construcción. El manual está dirigido a los estudiantes de las escuelas eléctrica  y facultades de Ingeniería.
LINK
http://www.mediafire.com/view/krl6nzz34r0p4ie/TEORIA_DE_CIRCUITOS_LINEALES-SHEBA-1967.pdf

COLECCION DE PROBLEMAS DE INGENIERIA ELECTRICA Y ELECTRONICA -GERASIMOV-Сборник задач по электротехнике и основам электроники Герасимов В.Г. Зайдель X.Э. Коген-Далин В.В. -1987

LINK

http://www.mediafire.com/view/ylr0c4lp24xlg3d/COLECCION_DE_PROBLEMAS_DE_INGENIERIA_ELECTRICA_-GERASIMOV.pdf

TEORIA DE INGENIERA ELÉCTRICA MANZUROV-1966-Теоретическая электротехника Мансуров Н.Н. Попов В.С.

LINK
http://www.mediafire.com/view/s11i1u9i2iw1zau/TEORIA_INGENIERIA_ELECTRICA-MANZUROV-1966.pdf

PROBLEMAS DE MAQUINAS ELECTRICAS-M.M.KATZMAN-Сборник задач по электрическим машинам М.М. Кацман

LINK
http://www.mediafire.com/view/bnmq41j2999dd6h/PROBLEMAS_DE_MAQUINAS_ELECTRICAS-_KATZMAN.pdf

Design and Implementation of an SMPS for UPS Charging and Discharging System using the DC-DC buck converter method by Kim dong-Rok Department of Electronics & Mechatronics Engineering Graduate School of Industrial Technology and Management Korea Polytechnic University

Design and Implementation of an SMPS for UPS Charging and Discharging System using the DC-DC buck converter method by Kim dong-rok Advisor : Prof. Lee Sang-ho, Ph.D. Department of Electronics & Mechatronics Engineering Graduate School of Industrial Technology and Management Korea Polytechnic University
 The purpose of this paper is to develop the SMPS(Switched Mode Power Supply) for the implementation of the charge-discharge system of the UPS(Uninterruptible Power System) with the DC-DC buck converter. The proposed SMPS is designed to be able to switch two different output voltage levels and it has provided a circuit configuration for the two output voltage. This SMPS operated the generator circuit of the output voltage in response to the state of the High/Low of the output selected signal. As the rest of the circuit groups are not driven, unnecessary power consumption is minimized. The equipment with a high battery power is possible to charge by using the 2 fuse-2 outlet cable on the 12~70V DC area. The equipment with a low battery power is possible to charge by using the 8Fuse-8prong cable on the 12V DC area. Eventually, the developed SMPS system is capable of controlling by a simple switch as well as efficient.
LINK http://www.mediafire.com/view/hyxxmty5avzwr32/Design_and_Implementation_of_an_SMPS_for_UPS.pdf

XII-7-10 Power of A.C.Circuit(2015) Pradeep Kshetrapal Physics

XII_102.Transistor as Amplifier-Classroom lecture by Pradeep Kshetrapal. Language : English mixed with Hindi.

XII_100.Semiconductor, Transistor-Physics, Class XII Chapter : Semiconductor Topic : Transistor, Introduction Classroom lecture by Pradeep Kshetrapal. Language : English mixed with Hindi.

Lecture - 20 Bipolar Junction Transistor-Prof.K.Radhakrishna Rao, Department of Electrical Engineering,IIT Madras-INDIA

 Lecture Series on Electronics For Analog Signal Processing I by Prof.K.Radhakrishna Rao, Department of Electrical Engineering,IIT Madras. For more details on NPTEL visit http://nptel.iitm.ac.in

Eletrônica Analógica aula 2-LABORATORIO AMPLIFICADOR OPERACIONAL-OPAMP

Eletrônica Analógica aula 1

Transistores BJT 03 Polarizacion y capacitador de acoplo y desacoplo

Electrónicos I con el profesor Sarmiento de la UNMSM-FACULTAD DE INGENIERIA ELECTRÓNICA

Transistores BJT 11 Tipos de Configuración- ING. SARMIENTO-FACULTAD ING. ELECTRÓNICA-UNMSM-LIMA-PERÚ

 CLASE DE CIRCUITOS ELECTRÓNICOS I -ING. SARMIENTO-FACULTAD DE INGENIERIA ELECTRÓNICA-UNIVERSIDAD NACIONAL MAYOR DE SAN MARCOS- LIMA- PERÚ

PSPICE Introdução a Simulação Eletrônica R.Heinemann -Визуальное моделирование электронных схем в PSPICE Хайнеманн Р. -PSPICE Einführung in die Elektroniksimulation-Carl Hanser Verlag München

  PSPICE Robert Heinemann software de simulação electrónica (quase) sem fronteiras: PSpice Este site contém as informações mais recentes sobre PSpice, que representa o padrão da indústria no software eléctricos e electrónicos por muitos anos. Você vai encontrar aqui todos os tipos de dicas e truques para a simulação com PSpice e exemplos selecionados de simulações de engenharia elétrica e eletrônica. A página destina-se principalmente a fornecer os leitores do meu livro PSpice, Introdução à simulação da eletrônica com material que foi encontrado no livro nenhum lugar, ou ainda não tinham disponíveis no momento da impressão.
Este  livro PSpice, Introdução à simulação Eletrônica inclui o OrCAD demonstração versão 16.0, com a simulação de Circuitos com um máximo de 60 componentes é possível. capa de livro PSPICE Introdução a Eletrônica Simulation 7, atualizada e ampliada edição de 2011 400 páginas, capa dura. Com o software de simulação em CD. Carl Hanser Verlag, Munique  O software funciona em Windows XP, Vista, 7; não com o Windows 8.
LINK VERSÃO ALEMÃO
http://www.spicelab.de/
LINK VERSÃO RUSA FORMAT DJVU
Визуальное моделирование электронных схем в PSPICE
Хайнеманн Р.
http://mexalib.com/download/15315

Digital Signal Processing - Chonnam National University -PROF JIN YOUNG -디지털신호처리 전남대학교 김진영

LINK VIDEO COURSE
http://www.kocw.net/home/search/kemView.do?kemId=153546&ar=relateCourse

Nanostructured Materials -PROF. H. EDUARDO ROMAN-MAX PLANK INSTITUTE FOR THE PHYSICS OF COMPLEX SYSTEM -DRESDEN GERMANY

Pohang University of Science and Technology KOREA- LECTURES
포항공과대학교 헥터 에드워도 로만
After successful attendance the students will acquire the instruments to describe peculiar quantum phenomena in nanoscale systems. In particular they will be introduced to the basic mechanisms of charge migration at the nanoscale ranging from (bio)chemical charge transfer processes till transport phenomena through molecular to mesoscopic devices.

LINK FULL LECTURE
http://www.kocw.net/home/search/kemView.do?kemId=448151&ar=relateCourse

ELECTRICAL CHARACTERIZATION OF SEMICONDUCTOR MATERIALS AND DEVICES APPLICATION TO ADVANCED SOI STRUCTURES Kyungpook National University, SORIN CRISTOLOVEANU-KOREA

ELECTRICAL CHARACTERIZATION OF SEMICONDUCTOR MATERIALS AND DEVICES
APPLICATION TO ADVANCED SOI STRUCTURES
SORIN CRISTOLOVEANU
IMEP-INP-GRENOBLE-MINATEC,CNRS FRANCE

LINK FULL COURSE (ENGLISH)
http://www.kocw.net/home/search/kemView.do?kemId=331030

Introduction to Power Electronics Hanyang University - PROF. Thomas Anthony Lipo

LINK VIDEO COURSE
http://www.kocw.net/home/search/kemView.do?kemId=308714

POWER ELECTRONICS PROF. YONGSUG SUH - CHONBUCK NATIONAL UNIVERSITY - KOREA OPEN COURSEWARE

POWER ELECTRONICS PROF. YONGSUG SUH-PART1
POWER ELECTRONICS PROF. YONGSUG SUH -PART2
POWER ELECTRONICS PROF. YONGSUG SUH -PART3 LINK PARA ASSISTIR  VIDEO CURSO POWER ELECTRONICS
http://www.kocw.net/home/search/kemView.do?kemId=153670

Engineering- BASIC ELECTRONIC CIRCUITS-Manar Mohaisen-KOREA UNIVERSITY TECHNOLOGY AND EDUCATION

The course addresses the analysis and design of basic electronic circuits, including diodes and their applications, bipolar junction transistors (BJTs) and their applications, and field effect transistors (FETs) and their applications. LINK ORIGINAL
http://www.kocw.net/home/search/kemView.do?kemId=338579

Circuit Theory I - Dongshin University -Choe yong seong -회로이론I비디오 동신대학교 최용성 2014년 1학기

Circuit Theory I video Dongshin University choe yong seong first semester of 2014 Be able to acquire basic principles in time for the circuit analysis method of the circuit, and can utilize the analysis and design of this circuit and system found in electrical and electronic engineering and ultimately train engineers with the analysis and synthesis skills circuit.
 LINK FULL CURSO EN VIDEO
http://www.kocw.net/home/search/kemView.do?kemId=1085721
LINK DONGSHIN UNIVERSITY
http://intl.dsu.ac.kr/

ON THE WAY TO FUSION ENERGY Christopher Llewellyn Smith professor at Oxford University-На пути к термоядерной энергетике Кристофер Ллуэллин-Смит,

 LEBEDEV PHYSICAL INSTITUTE MOSCOW
Переключение между языковыми версиями:  TRADUCCION РУС/ENG
APRETA EL BOTON PYC = EN IDIOMA RUSO
APRETA EL BOTON ENG = EN IDIOMA INGLES
 LINK ORIGINAL
http://elementy.ru/nauchno-populyarnaya_biblioteka/430807/Na_puti_k_termoyadernoy_energetike

A 50kW SiC Three-phase AC-DC Converter Design for High Temperature Operation-Virginia Tech Center for Power Electronics Systems -CPES

Sistema elétrico de propulsão para barcos de pequeno porte empregando baterias e energia solar-INEP-UFSC-INSTITUTO DE ELETRÔNICA DE POTÊNCIA-BRASIL

O projeto trata do desenvolvimento de um sistema elétrico de propulsão e de captação de energia solar fotovoltaica para um veículo de transporte marítimo de pequeno porte. Emprega carregadores de bateria (a partir da rede elétrica e de painéis fotovoltaicos), inversor de tensão trifásico e motor. O sistema eletrônico desenvolvido possibilita substituir o sistema de propulsão à combustão em embarcações de pequeno porte. Estas embarcações, projetadas especificamente para o sistema de propulsão elétrica, poderão ser utilizadas para inspeção de lagos de barragens de hidrelétricas. Também poderão ser utilizadas para: - Inspeção e fiscalização em áreas litorâneas da costa brasileira; - Visitação turística em áreas fluviais ou marítimas de proteção ambiental.

Defesa de mestrado - Marcos José Jacoboski-Programa de Pós-Graduação em Engenharia Elétrica-UFSC-UNIVERSIDADE FEDERAL DE SANTA CATARINA-BRASIL

 

A Study of UPS System Using Integrated Source Transfer Switch Method Yong-UkKim Department of Electrical Engineering Graduate School of Industry Pukyong National University

Abstract - Single UPS operation of a plurality of such parallel d related research is going.UPS voltage/constant-frequency supply capacity of STS and multiple UPS parallel operation of the problems caused
due to the combination of transfer function of an uninterruptible power neutrali zing SYSTEM propose a way of switching from traditional asynchronous state on the benefits and Radish only transfer the problems caused by five manual operation of an asynchronous operation and SCR switching behavior is studied.
LINK
http://www.mediafire.com/view/q4mvxqxb3omvic0/STS-UPS.pdf

A Study on Management Standards of Total Harmonics Distortion(THD)measured from UPS - Jeong,Unho Department of Electrical and ElectronicEngineering Graduate School,Dongshin University

The purpose of this paper is to describe UPS(Uninterruptible Power Supply) in a comprehensive measure THD(Total Harmonic Distortion) and compared with domestic and international management standards in harmonics, harmonics reduction measures by analyzing the appropriate UPS technology. Harmonics generated by the UPS. measurements of national standards was confirmed appropriate, UPS comprehensive harmonic currents measured range THD-I limits for national standards, the reference by KSC 4310, THD-V for domestic not based on the site was confirmed. Therefore,The IEEE(Institute of   Electrical and Electronics Engineers)Std.519 i applied in this paper as a reference for domestic standards on THD-V limits management.In recent years,according to integration of KSC standards in to IEC,UPS standards are being revised as KSC IEC 62040,but there are still no regulations for THD-V and THD-Iabout UPS causing confusions in some aspects.Accordingly,in the KSC IEC management standards to be amended which are related to UPS,I consider the introduction of the integrated regulatory limits on THD-V andTHD-I which are currently mixed to be very urgent. Therefore In this paper, we measured the THD-I and THD-V for UPS domestic and international management standards and harmonic comparison and analysis results were as follows.
LINK
http://www.mediafire.com/view/zfro9hz339iatjb/A_Study_on_Management_Standards_of_Total_Harmonic_Distortion%28THD%29_measured_from_UPS.pdf

A Study on the Heat Flow Inside UPS according to the Outside Temperature -Dong – Min Kim Department of Mechanical Engineering, The Graduate School Konyang University Nonsan Chungnam Korea

Dong – Min Kim Department of Mechanical Engineering, The Graduate School Konyang University Nonsan Chungnam Korea

 UPS is an electrical apparatus that provides emergency power to a load when the input power source, typically mains power, fails. When installing UPS in outdoors (a road near or mountain, etc..), it is also possible many problems according to the outdoor environment. And it is possible generate condensation by a temperature difference The purpose of this study was to predict the inner temperature of UPS and to prevent dew condensation in UPS by simulating the heat flow using ANSYS. So in this study, The inner heat flow simulations for UPS were conducted by the Computation Fluid Dynamics Analysis, ANSYS, during the active state of UPS. Compared with Air temperature, Relative humidity, Inner temperature of UPS to be found that condensation is occurring. It’s can be improved by ventilation or insulation effectively inside UPS according to this simulation result.
LINK
http://www.mediafire.com/view/64sm02hh5f7f4ob/A_Study_on_the_Heat_Flow_Inside_UPS_according_to_the_Outside_Temperature.pdf

Short-circuit and selection of electrical equipment Kryuchkov - Короткие замыкания и выбор электрооборудования Крючков И.П.

Short-circuit and selection of electrical equipment Kryuchkov - Короткие замыкания и выбор электрооборудования Крючков И.П.
The methods for calculating short circuits, simple and complex asymmetrical modes in power systems, thermal and electrodynamic effects short circuit currents in the conductors and electrical equipment, methods and techniques for limiting short-circuit currents, especially the calculations of short circuits in the electrical voltage up to 1 kV.
LINK ORIGINAL EN LA WEB FORMATO DJVU
http://mexalib.com/download/35812

LINK ALTERNATIVO FORMATO PDF