Circuit Theory I

Lecture Notes

Week	Lecture	Notes
Week 1	Circuit Theory I: goals and underlaying assumptions
Week 2	Circuit Variables
Week 3	Circuit Elements
Week 4	Resistive Circuits
Week 5	Circuit Analysis Techniques and Theorems
Week 6	Operational Amplifier
Week 7	Operational Amplifier Imperfections
Week 8	Energy Storage Elements and transformers
Week 9	First order RC and RL circuits Examples of Sequential Switching Circuits
Week 10	RLC circuits: part a   part b Anant Agarwaland Jeffrey Lang, course materials for 6.002 Circuits and Electronics, Spring 2007. MIT OpenCourseWare(http://ocw.mit.edu/), Massachusetts Institute of Technology. Downloaded on [2 Dec 2009]

LINK ORIGINAL EN LA WEB
https://www.blogger.com/blogger.g?blogID=1078288880652113587#editor/target=post;postID=2934418545071209264

CONFERENCIA SEGURIDAD ELÉCTRICA EN CENTROS QUIRÚRGICOS Y SALAS DE OPERACIONES -FACULTAD DE INGENIERIA ELÉCTRICA Y ELECTRÓNICA DE LA UNIVERSIDAD NACIONAL MAYOR DE SAN MARCOS

PES UNMSM 
Buenas noches con todos compañeros, nuestros amigos del Capitulo Estudiantil EMB-UNMSM de la Escuela de Electrónica, Invita a todos los interesados en la Especialidad Biomedica a participar de esta tarde de conferencias. LUGAR: Auditorio del Pabellón A (Puerta 3) DIA: Miércoles, 21 de septiembre.
 Mas información e inscripciones escribir al correo ieee.emb.unmsm@gmail.com

Evaluation of Wireless Resonant Power Transfer Systems With Human Electromagnetic Exposure Limits Andreas Christ, Mark G. Douglas, Senior Member, IEEE, John M. Roman, Member, IEEE, Emily B. Cooper, Member, IEEE

Abstract—This study provides recommendations for scientifi- cally sound methods of evaluating compliance of wireless power transfer systems with respect to human electromagnetic exposure limits. Methods for both numerical analysis and measurements are discussed. An exposure assessment of a representative wireless power transfer system, under a limited set of operating conditions, is provided in order to estimate the maximum SAR levels. The system operates at low MHz frequencies and it achieves power transfer via near field coupling between two resonant coils located within a few meters of each other. Numerical modeling of the system next to each of four high-resolution anatomical models shows that the local and whole-body SAR limits are generally reached when the transmit coil currents are 0.5 ARMS – 1.2 ARMS at 8 MHz for the maximal-exposure orientation of the coil and 10-mm distance to the body. For the same coil configurations, the exposure can vary by more than 3 dB for different human models. A simplified experimental setup for the exposure evaluation of wireless power transfer systems is also described.

LINK
http://sensor.cs.washington.edu/pubs/power/magnetic_resonance_human_em_exposure.pdf

IEEE POWER ELECTRONICS MAGAZINE JUNE 2016

LINK
http://online.qmags.com/PEL0616/default.aspx?sessionID=45F3504DBF037884B24E7B7DC&cid=3366818&eid=19917&pg=20&mode=2#pg1&mode2

LINK FULL MAGAZINE FORMAT PDF
http://www.mediafire.com/download/cy23ugi7sx5flub/PEL_20160601_Jun_2016.pdf

Conversor CC-CC tipo T ZVS PWM: análise, projeto e implementação Autor:Bandeira Junior, Delvanei Gomes -Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2014 BRASIL.

Conversor CC-CC tipo T ZVS PWM: análise, projeto e implementação Autor: Bandeira Junior, Delvanei Gomes Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2014.

 LINK ORIGINAL DA DISSERTAÇÃO DE MESTRADO https://repositorio.ufsc.br/handle/123456789/128980

 LINK DIRECTO ARQUIVO PDF 
https://repositorio.ufsc.br/bitstream/handle/123456789/128980/328199.pdf?sequence=1&isAllowed=y

 Abstract : This work presents the analysis of the T-Type Zero Voltage Switching Pulse Width Modulated isolated DC-DC converter (TT-ZVS-PWM Converter). The topology is composed of four switches. Two of them are subjected to the input voltage level and the other two to half the input voltage. All primary side switches commutate under zero-voltage. The proposed converter has the following in common with the Full Bridge Zero-Voltage Switching (FB-ZVS-PWM) and the Three-Level Zero-Voltage Switching (TL-ZVS-PWM) converters: (a) symmetrical operation of the isolation transformer, (b) modulation by pulse-width with constant frequency, (c) zero voltage switching, and (d) three-level voltage applied to the primary winding of the transformer. Theoreticalanalysis, small signal model, design example and experimental results for a 3 kW, 400 VDC input, 60 VDC output, and 50 kHz switching frequency laboratory prototype, are included. Measured efficiency was 93% at full load and a peak efficiency of 95.2% occured at 1.2 kW.

 RESUMO Este trabalho apresenta o estudo de um conversor CC-CC isolado com comutação suave, saída em corrente, para aplicações envolvendo altas potências, com nome T-Type Zero Voltage Switching Pulse Width Modulated dc-dc converter(TT-ZVS-PWM). O conversor a ser estudado possui quatro interruptores. Dois deles são submetidos à tensão de entrada, já os outros dois são submetidos à metade da tensão de entrada. Todos os interruptores comutam sob tensão nula. O conversor proposto possui as seguintes semelhanças com os conversores Full Bridge Zero Voltage Switching(FB-ZVS-PWM) e Three Level Zero Voltage Switching(TL-ZVS-PWM): (a) Operação simétrica (b) Modulação por largura de pulso com frequência constante (c) comutação sob tensão nula e (d) tensão de saída do conversor com três níveis, a ser aplicada nos terminais do primário do transformador. O trabalho é dividido em análise teórica, análise do modelo de pequenos sinais do conversor e roteiro para projeto do conversor. Um protótipo com 3 kW, 400 V de entrada, 60V de saída e frequência de comutação de 50 kHz comprova a análise desenvolvida. A eficiência obtida no protótipo foi de 93% para carga nominal e de 95,2% para 1,2 kW