Faculty of Science and Engineering
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Item Design And Implementation Of A Multiple Input And Multiple Output (Mimo) Boost Converter(Department of Electrical and Electronic Engineering, 2022-04) HASAN, MD. JAHID; CHY, MD. ABUL HASNAINThe voltage from the input supply to the output load is increased by the boost converter. A DC to DC and DC to AC power converter is what it is. To enhance efficiency and reduce losses, the switch mode power supply (SMPS) must be quickly turned on and off. For SMPS, including boost converters, the introduction of commercial solid-state switches in the 1950s marked a crucial turning point. The boost converter may continue to output the required current at that low input voltage due to its capacity to endure a small switching current. A boost converter's output voltage is always higher than its input voltage. In a boost power stage realistic, an inductor is depicted closed with current flowing through it in a clockwise direction to store some energy. Both power MOSFETs and bipolar power transistors are used in power switching; the decision to use one over the other is decided based on variables like current, voltage, switching speed, and cost. The boost converter circuit can produce a lot of voltage, thus we want to utilize a capacitor with a high voltage rating. The capacitance of the capacitor should be high as well. Since the inductor is discharging a sizable quantity of current, we need the capacitor's capacity to maintain this charge. The main DC/DC converters were created in the early 1960s, when solid-state switches were readily accessible. As a result of the aircraft industry's requirement for small, light-weight power converters, technology has moved swiftly in this area. Our complete system is controlled by a microcontroller chip and LC circuits. With this project, the designer will have a technique to raise the DC voltage from 05V and 12V DC to 06V-36V DC. This project involves the design, control, and modeling of a unique Multi Input-Multi-Output Boost Converter architecture. The main advantages of the system are voltage stepping up with the least number of components possible, low operational duty cycle, and great efficiency across a wide range of input and output voltages. This discovery has a wide range of alternate applications, including power supply for LEDs and battery packs for electric vehicles.Item Design And Implementation of A Rfid and Bar Code Based Smart Meter Security System And Gsm Based Power Unit Observation(Department of Electrical and Electronic Engineering, 2022-06) Hossain, Md. Khaled; Hossain, Md ArafA typical meter reading system causes lots of problems. If some outsider connects a hidden line with a house property it’s been very difficult for him to detect the outsider’s electrical connection. This project has given a solution to that problem by creating extra security over the meter reading system. By using this system a user can only read his/her meter balance by punching a rfid tag. If he doesn’t have the rfid card then he /she can not check the meter balance. So only the authorized user can see how much load is connected to the meter and find the unauthorized connection. This system will also work as a complete blockchain system. So the user will have an android app, where he/she can find the meter reading current status after authentication. A registered user can also recharge the meter by scanning its Barcode tag. So he/she don’t have to give manual token number. This system has been developed in such an easy way that any user can check , recharge and observe his billing status from the applicationItem Analyzation of Q-factor for Free Space Optical Communication System Using Neural Network(Department of Electronic and Telecommunication Engineering, 2021-10) Mohammad Nur Uddin Sikder, T171023; Lokman Hossen, T171039; Fahim Ikbal Sakib T171045Analyzation of Q-factor for Free Space Optical Communication System Using Neural Network There are many options for optical fiber communication system configurations according to user satisfaction, but to establish this system it is essential to simulate the system to avoid unexpected output. To predict the output, among other mathematical tools, many researchers found the neural network is remarkable and one of the most promising methodological approaches to perform network-data analysis and enable automated network self-configuration and fault management. In this research paper, we proposed a neural network to perform optical communications and networking analysis, summarize and compare some classical research using the MATLAB tools. For training and test data, as the maximum quality factor can be achieved using Gaussian optical filter compared to different optical filters simulated by optical communication system design software product by the optical-wave team, we’ve used the Gaussian optical filter throughout the procedure. We also have used different data rates and diameter aperture. And the system performance is evaluated using the BER curve, Q factor, eye diagram, and spectrum analyzer output