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”

https://picasion.com/
https://picasion.com/

segunda-feira, 3 de junho de 2019

WEBINAR Inversores Solares e suas Topologias-Data do webinar - 04 Junho 2019, às 19h00



EVENTO GRATUITO 
ENTENDA TUDO SOBRE INVERSORES SOLARES E CONHEÇA AS MELHORES TECNOLOGIAS DISPONÍVEIS NO MERCADO 


Data do webinar - 04 Junho 2019, às 19h00



 INSCREVA-SE AGORA

domingo, 2 de junho de 2019

VISITA A INFORDATA INGENIERIA DE LA INFORMATICA LIMA PERU -29 MAIO 2019


ENG. JUAN VICENTE HUAPAYA (GERENTE GENERAL INFORDATA) E ENG.ARMANDO CAVERO MIRANDA COM AS CANECAS DA COPA AMERICA BRASIL 2019



EQUIPE TECNICO DA INFORDATA JUNTO COM ENG. JUAN VICENTE HUAPAYA

FOI MUITO GRATO VISITAR A UNA DAS MAIORES EMPRESAS DE ENGENHARIA DE INFORMATICA DE LIMA PERU,INFORDATA,TENHO A ALEGRIA DE TER ESTUDADO ENGENHARIA ELETRÔNICA NA UNIVERSIDAD NACIONAL MAYOR DE SAN MARCOS COM O GERENTE GENERAL ENG. JUAN VICENTE HUAPAYA,TEMOS UMA AMIZADE QUE TRANSCENDE O TEMPO,A INFORDATA NASCE EM 1988 ATUALMENTE TEM COMO PRODUTO PRINCIPAL SERVIDORES PARA O SETOR EMPRESARIAL,SETOR CORPORATIVO,USUARIO HOME OFFICE,DESENVOLVIMENTO DE SOFTWARE PARA TELEFONES CELULARES,VENDA DE DRONES,LAPTOPS,UPS,Lousa Digital/Tela Interativa | Alto padrão de qualidade .
 A INFORDATA ACREDITA NA PESQUISA E DESENVOLVIMENTO DE NOVOS SOFTWARES QUE SEJAM APLICADOS EM TELEFONES CELULARES.

Confira os 10 principais benefícios da Lousa Interativa:

1. Torna o aprendizado mais agradável, seguro e participativo.

 2. Facilita a prática pedagógica dos professores, que podem projetar e manipular conteúdos de diversas formas.

 3. É um recurso multimídia versátil que se adapta às necessidades das turmas, de acordo com o seu perfil e nível de aprendizagem.

 4. Amplia a motivação e o interesse dos alunos.

 5. Aumenta a familiarização dos professores com o uso de novas tecnologias.

 6. Possibilita o ensino em tempo real, pois é um recurso que pode ser usado a qualquer momento.

 7. Permite que o professor faça anotações escritas ou que opere softwares, apresente e edite imagens, mostre vídeos, navegue na Internet, entre outas atividades.

 8. Facilita a aprendizagem colaborativa ao estimular o aprendizado e o trabalho em grupo. Isto é, aumenta o diálogo e a cooperação entre professores e alunos.

 9. Possibilita a interação com diversos tipos de conteúdo e autonomia para criação de projetos.

 10. Potencializa a aprendizagem, trazendo recursos diferenciados para aproximar os alunos dos conhecimentos a serem adquiridos em sala de aula.

MAIORES INFORMAÇÕES :https://www.infordata.com.pe/

sábado, 1 de junho de 2019

Start-up Circuit and Power Sequence Design for Initial Start-up of Hysteretic Controlled Step-down Converter- Chai-won Kim-Department of Electronics & Electrical Engineering Graduate School Dankook University-2018







Initial Start-up of Hysteretic Controlled Step-down Converter Chai-won Kim Department of Electronics & Electrical Engineering Graduate School Dankook University

ABSTRACT

 With the rapid spread of battery-based portable products that emphasize convenience like Smart-phones today, the importance and demand for power management circuits are rapidly increasing. Therefore, miniaturization, long operation time, and stability are important for electronic devices, so the power management circuit needs to research and develop low power, miniaturization and light weight in accordance with market demand. Since the power management circuit plays a role of the other system, stable operation is important. In this paper, we design a dual soft-start circuit and a power-up sequence for stable start-up because the entire system starts to run faster as the power management circuit becomes faster. Digital Soft-start has low power consumption and can easily change the reference voltage. In addition, in the case of the digital soft-start circuit, there is an advantage that an external capacitor element is not necessary and the area can be reduced. In the case of the analog type soft-start circuit, the soft-start time can be adjusted by adjusting the external capacitor value according to the user, and the output voltage is linear. Therefore, in this paper, dual soft-start circuit is designed to support both the advantages of digital and analog soft-start. In the case of the power-up sequence design, after the supply voltage of the buck converter is supplied, the required voltage between the internal circuits of the Bias Block is monitored for a stable bias voltage. If the voltage required by one circuit is secured, the next bias circuit starts to operate Respectively. As a result, the power-up sequence is designed in order of Bandgap Reference-> Enable-> LDO-> UVLO-> Mode-> Soft-start so that stable operation can be performed during start-up of the buck converter. As a further study, we proposed a soft-start circuit design method to reduce the start-up time of Buck converter. This design was designed using Samsung BCD 0.13um process, and Psim provided by Korea Power Systems Co. and Cadence provided by Cadence Co. were used. We used the Virtuoso layout editor for layout design and Mentor's caliber for DRC and LVS verification.

LINK
https://www.mediafire.com/file/xuwxxukj7fbcgv5/Hysteretic_Controlled_Step-down_Converter.pdf/file

terça-feira, 7 de maio de 2019

Design of a highly efficient charger for Nickel-Iron batteries Anil Kumar Ananda Master of Science Thesis Electrical Power Engineering at Delft University of Technology




Design of a highly efficient charger for Nickel-Iron batteries Anil Kumar Ananda Master of Science Thesis Electrical Power Engineering at Delft University of Technology Faculty of Electrical Engineering, Mathematics and Computer Science (EEMCS) · Delft University of Technology
 Abstract 
 Obtaining good performance from stand-alone PV systems requires successful integration of batteries that are reliable, effective, long lasting, environmental-friendly and affordable as it is crucial to deal with variable solar illumination throughout the year. Nickel Iron battery technology (Ni-Fe) is a perfect fit for the solar-powered households as it is satisfies all the requirements. Charge controllers need to be efficiently designed for Ni-Fe batteries for protection from overcharge/discharge. This thesis concentrates on selecting the best topology from B2R converters from the patent 550 of ESA to be applied for designing the charge controller for Ni-Fe batteries. An analysis is carried out to determine the advantage of B2R converters in the patent over conventional buck-boost topologies like SEPIC or Cuk and evaluate their utility for charge control applications. The focal point of topological selection will be the evaluation of topologies on the basis of efficiency and complexity for realistic adaptation into a charge controller. After defining the load power parameters, the operation of the topologies in two different modes of conduction (BCM & CCM) is investigated and an analytical model is developed for losses. Significant factors that play a role in determining the efficiency for varying source parameters (input voltage) are scrutinized. The relative merits of using BCM/CCM for design are inspected by carrying out simulations for loss calculations using the analytical model with data-sheet parameters from realistic components for their suitability for the application. Component selection is done by keeping in mind the prevalent technologies in the market that are costeffective and the procedure followed in the design of magnetics for the topologies in different modes of conduction and its impact on efficiency is discussed and an assessment is carried out on the performance of the components with variations in input voltage for the same power level. The proposed analytical models for switching losses in MOSFETs and overall losses topologies are validated by carrying out experiments on the prototypes of two best topologies in both conduction modes. The results critique the accuracy of the analytical model in determining the actual efficiency of the topologies, the margin of deviation by means of comparison with the experimental results and concludes with suggestions for selecting the most efficient topology and recommends a mode of conduction for best results.
LINK
https://repository.tudelft.nl/islandora/object/uuid:6d77615d-925e-4a7e-88d7-818552522bda/datastream/OBJ/download