NI Bulgakov CALCULATION TRANSFORMERS-Н.И. БУЛГАКОВ РАСЧЕТ ТРАРНСФОРМАТОРОВ-1950

LINK http://www.mediafire.com/download/ke390gb5mkkcb6n/Bulgakov.pdf

Research Issues for Energy Efficient Cellular Networks Prof. Vijay Bhargava-2013 제5회 정보전자융합공학부 국제심포지엄 포항공과대학교 Vijay Bhargava, Harri Siitari, Ajay Agarwal, Prasant Mohapatra, Mikio Aoyama, Dongman Lee, Ben Lee

The rising energy costs and carbon footprint of operating cellular networks have led to a trend in addressing energy-efficiency amongst the network operators and regulatory bodies such as 3GPP and ITU. "Greening" the wireless networks is a vast research discipline that needs to cover all the layers of the protocol stack and various system architectures and it is important to identify the fundamental trade-offs linked with energy efficiency and the overall performance. In this talk, we identify four important aspects of a green networking where we would like to focus: defining green metrics, bringing architectural changes in base stations, network planning, and efficient system design. We begin with a brief discussion on energy efficiency metrics. Since Base Stations (BSs) consume a major chunk of input energy, we discuss the energy efficiency of BSs. Next we discuss energy efficiency from a network planning perspective, based on smaller cells for heterogeneous networks. For system design, we put a special emphasis on cognitive and cooperative techniques in order to realize energy efficient cellular systems. Finally we discuss some broader perspectives and possible future trends in realizing a green cellular network technology.
 LINK ORIGINAL EN LA WEB
http://kocw.net/home/search/kemView.do?kemId=698269

Electronic Circuits -OPEN COURSEWARE -DAEGU UNIVERSITY

LINK
http://lms.daegu.ac.kr/ilos/ocw/opencourse_week_view_form.acl?OPENCOURSE_NUM=41&start=1&display=10&WRTSRC=&FIELD_NO=19

DESIGN OF BIRECTIONAL PWM SEPIC/ZETA DC-DC CONVERTER -SUNJO LEE-2009

DESIGN OF BIDERECTIONAL PWM SEPIC/ZETA DC-DC CONVERTER -SUNJO LEE
DEPARTMENT OF ELECTRICAL ENGINEERING  THE GRADUATE SCHOOL PUKYONG NATIONAL UNIVERSITY

LINK
http://www.mediafire.com/download/0n0s26c1dl0ya42/PWMSEPICFULL2009.pdf

Current Programmed Control of Three Phase PWM AC-AC Converter Yulong Li - Department of Electrical Engineering Graduate School Yosu National University

Current Programmed Control of Three Phase PWM AC-AC Converter 
 A Thesis for the Degree of Master of Engineering Yulong Li 
Department of Electrical Engineering Graduate School Yosu National University February 2006

 Abstract
In this thesis, a new scheme of current programmed control for three phase PWM AC-AC converter is proposed. Compared to duty-ratio voltage control, current programmed control has several advantages such as reduction of system order, inherent current protection and robust output. By considering only the magnitude components, a similar scheme in the DC-DC converter can be extended to the three phase PWM AC-AC converter. The proposed current programmed control will be well adopted into various converter topologies and three phase PWM AC-AC buck, boost and buck-boost converter are treated. The converter analysis is carried out by applying the vector DQ transformation to obtain physical insight into the converter operation and to establish some important characteristic equations for control purpose. The experiment results show the validity of the proposed scheme.

LINK
http://www.mediafire.com/download/7326xlk38o98on6/AC-AC-TRIF.pdf

Electromagnetism Sejong University PROF. YONGHO SEO - 전자기학 세종대학교 서용호

Based on the concept of engineering mathematics, learn static electric field and static magnetic field, steady current, and related problems. Apply the basic knowledge of the electromagnetism to electronics, electric engineering and device material engineering.
LINK ORIGINAL
http://www.kocw.net/home/search/kemView.do?kemId=1074223&ar=relateCourse

Electromagnetic Field Theory Fundamentals Bhag Singh Guru, Hüseyin R. Hiziroglu

LINK DEMO BOOK GOOGLE
https://books.google.com.br/books?id=qzNdDtZUPXMC&lpg=PP1&hl=pt-BR&pg=PP1#v=onepage&q&f=false
LINK ALTERNATIVO
https://pt.scribd.com/doc/238997975/Electromagnetic-Field-Theory-Fundamentals-2nd-Edition-by-Bhag-Singh-Guru-and-Huseyin-R-Hiziroglu

Electromagnetics II - The first semester of 2016 electromagnetics II class homepage.-2016년 1학기 전자기학 II 수업 홈페이지입니다.-PROF. W-Y.CHOI

LINK FULL CURSO ELECTROMAGNETISMO II
http://tera.yonsei.ac.kr/class/2016_1_1/main.htm

고급디지털회로설계/ Advanced digital circuit design / EEE3163-Engineering-SOGAN OPEN COURSEWARE

LINK  ORIGINAL
http://ocw.sogang.ac.kr/courses/courses_LNote.jsp?cate_02=36&cate_03=757&cate_04=758&cid=7237&mt_id=3250&FL_ID_main=7236

Electromagnetism I - Sogang University - Prof. Wonmin Son-SCHOOL OF NATURAL SCIENCES-SOUTH KOREA-(VIDEO ENGLISH)-SOGAN OPEN COURSEWARE

Electromagnetism I - Sogang University - Prof. Wonmin Son-SCHOOL OF NATURAL SCIENCES-SOUTH KOREA
 Subject Category Engineering; Electrical and Electronics; Electronics Lecture Semester 1st semester 2014

   Electromagnetism deals with the theory on the electric and the magnetic phenomena which occur in nature. In this course, we also aims to let the physics students be familiarized with the description of field in the three dimensional space. Starting from the basic discipline on the vector analysis, this course covers the topics of electrostatics, electric potentials, electric fields in matter, magnetostatics and magnetic fields in matter.

LECTURE NOTES

Lesson	Topic
02	Vector Analysis1 (2014-03-06)
03	Vector Analysis2 (2014-03-11)
04	Vector Analysis2 (2014-03-13)
05	Electrostatics1 (2014-03-18)
06	Dirac Delta Function (2014-03-20)
07	Dirac Delta Function (2014-03-25)
08	Chapter 2. Electric Field (2014-04-01)
10	The potential of a localized charge distribution (2014-04-03)
11	The energy of a continuous charge distribution (2014-04-08)
12	Chapter 3. Potentials (2014-04-10)
13	Force and energy (Image charge continued) (2014-04-15)
14	Multipole Expension (2014-04-29)
15	Multipole Expension (2) (2014-05-01)
16	The field of a polarized object (2014-05-08)
17	The electric displacement (2014-05-13)
18	Boundary value problem with linear dielectrics (2014-05-15)
19	Magneto statistic (2014-05-20)
20	The Biot-Savart Law (2014-05-22)
21	Ampere's Law (2014-05-27)
22	Vector Potential (2014-06-03)
23	Vector potential due to the magnetic dipole (2014-06-05)
24	The auxiliary field H (2014-06-10)

LINKS ORIGINAL
LINK1
http://www.kocw.net/home/search/kemView.do?kemId=1019350
LINK2
http://ocw.sogang.ac.kr/courses/courses_LNote.jsp?cate_02=34&cate_03=571&cate_04=572

Optoelectronics Institute of Science and Technology Kamal Alameda - 광전자공학 광주과학기술원 카말 알라메

LINK
http://www.kocw.net/home/search/kemView.do?kemId=168549&ar=relateCourse

Edição 124 da revista Potência está disponível online Abril 15, 2016

Edição 124 da revista Potência está disponível online Leia online abaixo ou faça o download gratuito aqui: http://goo.gl/6mkCkf

 EXCELENTE REVISTA DO ENGENHEIRO HILTON MORENO

Introduction to Physical nanodevices Gwangju Institute of Science and Technology - 나노소자물리개론 광주과학기술원 이병훈-(VIDEO ENGLISH)

Introduction to Physical nanodevices Gwangju Institute of Science and Technology - 나노소자물리개론 광주과학기술원 이병훈-(VIDEO ENGLISH)

LINK VIDEO COURSE
http://www.kocw.net/home/search/kemView.do?kemId=156942&ar=relateCourse

GATE EE LECTURE: ELECTRIC MACHINE: PRINCIPLES OF TRANSFORMER

Video lecture for GATE in Electrical Engineering (EE) : Power Electronics.

 Thyristor Commutation Technique.

GATE LECTURE FOR ELECTRICAL: VOLTAGE SOURCE INVERTER

Video Lecture for GATE in Electrical Engineering- Power Electronics "Chopper Circuit"

POWER ELECTRONICS - PHASE CONTROLLED RECTIFIERS

UPS-NO-BREAKS EQUIPAMENTOS LUCRATIVOS PARA OS PARCEIROS

LINK ORIGINAL EN LA WEB
https://issuu.com/partnersales/docs/portal_revista_/35?e=1177377/34758000

Electrical engineer notes electromagnetism -전기기사필기 전자기학 19 히스테리시스현상, 자기회로

The electronic circuit (2) Daegu University jeong yu jeong- 전자회로(2) 대구대학교 정유정

Transistor, FFT application circuit, the equivalent circuit alternating current, frequency response, OP Amp, power amplifier transistor, FFT, the equivalent circuit alternating current, frequency response, OP Amp, power amplifiers, A / D, D / A, Ocillator, the operation of PnPn element learn about

LINK ORIGINAL EN LA WEB
http://www.kocw.net/home/search/kemView.do?kemId=1107986&ar=relateCourse

Electronic circuit and PCB Design Using OrCAD SW (Pspice AD and PCB Designer)-를 이용한 전자회로 및 PCB 설계

LINK ORIGINAL
http://www.kocw.net/home/search/kemView.do?kemId=1128582

Cuk-buck2 vs buck converter SHOOTOUT-Dr. Cuk presented at the Typhoon-HIL exhibit at APEC 2016

Publicado em 7 de abr de 2016 Dr. Cuk presented at the Typhoon-HIL exhibit at APEC 2016 his Cuk-buck 2 converter. First the critical salient waveforms are confirmed using Typhoon HIL latest 402 simulator, which has NO CONVERGENCE problems and offers dynamic ON SITE optimization of feedback control loop using Hardware in Loop (HIL) concept. Dr. Cuk showed that conventional synchronous buck is bad for any large step-down and especially for 48V to 1 V promoted by GaN device manufacturers as the next big thing!? This SHOOTOUT and explanations by Dr. Cuk confirm without the doubt that Cukbuck2 wins handily! More importantly this is just one in a number of new converter topologies that Dr. Cuk is now introducing which confirm that topology comes FIRST and DEVICES come second and must absorb all the bad properties of the converter such a buck which is patently bad for large voltage step-down. Buck converter might be tolerated for 10% voltage step-down or no step-down but NOT for large step-down. See for yourself the explanations by Dr. Cuk and look for related two part video of his seminar presentation at APEC 2016 Typhoon seminar and related technical paper posted on teslaco.com webpage and You Tube channel of Dr. Cuk.

Fluke webinar - a powerful solution for the efficient management of the UPS batteries-[플루크웹세미나] UPS배터리의 효율적인 관리를 위한 강력한 솔루션