Curso Superior de Tecnologia em Eletrônica Industrial
URI permanente desta comunidadehttps://ri.ifam.edu.br/handle/4321/957
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Item Desenvolvimento e caracterização de um amplificador classe D de média potência(2021-08-08) Santos, Giovanne Cavalcante; Ribeiro, Ewerton Andrey Godinho; Ribeiro, Ewerton Andrey Godinho; Garcia Júnior, Luiz Carlos da Silva; Cordeiro, Celso SouzaThe present work presents the creation and analysis of a class D amplifier, to carry out the amplification, the integrated circuit IRS2092 from IOR - Infineon Technologies was used, capable of managing, modulating and amplifying the signals, requiring only a good choice of power and monitoring components. it also requires a good selection of switching transistors and a suitable passive filter for demodulation. Thus, an amplifier capable of delivering a power of 40W in a resistive load with low harmonic distortion, less than 0.8%, was designed, being comparable to linear amplifiers, but with an efficiency greater than 90%, common value for class amplifiers D .In the work, the values of the components that fit in the test sequences are calculated. To arrive at the results, a synthesis of the functioning of each amplifier stage was made using commercially components, using an automatic oscillating modulation that has an excellent sound quality, besides making the circuit smaller within its cost. Finally, the amplifier was assembled to carry out the specifications and tests in order to validate the operation and practical specifications.Item Pesquisa e desenvolvimento de um sistema fotovoltaico conectado a rede com base nos dados do IFAM-CMDI(2021-08-05) Santos, Alessandra Freitas; Garcia Júnior, Luiz Carlos da Silva; Garcia Júnior, Luiz Carlos da Silva; Ribeiro, Ewerton Andrey Godinho; Cordeiro, Celso SouzaWith the growing demand for electricity and its generation inefficiently, our planet is undergoing severe climate-environmental changes. In order to ease this almost irreversible situation, it is becoming increasingly feasible to explore clean energy forms, that is, without emission of pollutants, such as solar photovoltaic energy. The work to be presented explores this type of energy that has as a source the solar star (sun), purely renewable and available for its use. A study is presented for the technical feasibility of a photovoltaic system connected to the network for deployment in the Campus Distrito Industrial of the Federal Institute of Education, Science and Technology of Amazonas