Browsing by Author "Abedin, Amina Hasan"

Now showing items 1-20 of 28

    • AC sine wave generation by using SPWM inverter 

      Islam, Md. Sakibul; Nuzhat, Farah; Nadim, Md. Nazmul Hoque (BRAC University, 2012-04-11)
      This paper contains the analysis of basic inverter topologies. pulse width modulation inverter has been briefly explained by giving operational methods and simulated circuits. Different methods of inverter have also being ...

    • Analysis of power converters and smart power factor correction 

      Noor, Khondaker Tasrif; Islam, Md. Samiul; Fuad, Fatin (BRAC University, 2016-08)
      Converter circuits are one kind of power electronics circuit which allows us to convert direct current voltage from one level into another level. With this pace of development in power electronics field and industry, now ...

    • Analysis of Rectifier circuits with power factor correction 

      Hassan, M. M. Emran; Sultana, Afrin; Akther, Sunjida (BRAC University, 2014-01)
      Power Factor, the ratio between the real power and the apparent power forms a very essential parameter in power system. It is indicative of how effectively the real power of the system has been utilized. With rapid ...

    • Boost and buck topology based single phase AC-DC converters with low THD and high power factor 

      Kabir, Md Ashfanoor; Abedin, Amina Hasan; Rahman, Dhrubo; Mustafiz, Rubiya Binta; Choudhury, Mohammad Ali A Shoukat (© 2011 Institute of Electrical and Electronics Engineers Inc., 2011)
      Two topologies of single-phase Buck and Boost AC-DC converters are presented. Instead of using a single phase rectifier followed by a boost dc-dc converter, or using a bridge rectifier with two diodes and two switches, the ...

    • Comparative study on DC-DC Converters 

      Tushar, Mehedi Hasan (BRAC University, 2012)

    • Ćuk topology based single phase AC-DC converter wih low THD and high power factor 

      Kabir, Md Ashfanoor; Abedin, Amina Hasan; Islam, Samia; Choudhury, Mohammad Ali A Shoukat (© 2011 Institute of Electrical and Electronics Engineers Inc., 2011)
      To topologies of single-phase Ćuk AC-DC converters with low input current THD and high input power factor are proposed. Instead of using a single phase rectifier followed by a boost DC-DC converter, or using a bridge ...

    • Design of a single phase AC-AC converter 

      Khan, Md. Imtiaz; Ahad, Abdul; Islam, Kamrul (BRAC University, 2012-04-12)
      An AC-AC voltage controller is a converter which controls the voltage, current and average power delivered to an AC load from an AC source. They are used in practical circuits like light dimmer circuits, speed controls of ...

    • Design of a single phase switch mode AC-DC Converter 

      Surjo, Md. Rafiqur Rahman; Amin, Md. Afsarul (BRAC University, 2011-12)

    • Designing a radio frequency controlled biomimetic flying bird 

      Adnan, Nahid Hasan; Alam, Mohammad Talha Talkin (BRAC University, 2014-08)
      The present world has been reached to a stage where most of the sophisticated and sensitive tasks are mostly done by artificial hands. Drones, robots have been replaced the place of human with their uncompromised accuracy ...

    • A detailed analysis on BUCK converter in different conduction mode 

      Shakil, Md Shaidul Islam (BRAC University, 2018)
      A DC-DC BUCK Converter is a basic type of switch mode power converter. It has variety of application. It behaves differently in different conduction mode. In this thesis a buck converter is designed first considering the ...

    • Diode-bridge enclosed one switch three-phase power factor corrected (PFC) Ĉuk rectifier 

      Abedin, Amina Hasan; Uddin, Mohammad Nasir; Islam, Samia M.Naeemul; Choudhury, Mohammad Ali A.Shoukat; Bashar, Khandaker Lubaba (© 2017 IEEE, 2017-04)
      A new one-switch three phase power factor corrected (PFC) rectifier is presented in this paper. The proposed 3-phase ac-dc converter is based on Ĉuk topology. Proper feedback control of the circuit can maintain high power ...

    • High altitude platform: solution for rainfall attenuation 

      Kazi, Reshad Rasul (BRAC University, 2008-05)
      High Altitude Platform Stations (HAPs) are communication facilities situated at an altitude of 17 to 30 km and at a specified fixed point relative to the Earth. They are mostly solar-powered, unmanned, and remotely ...

    • Implementation of microstepping in stepper motor using ATmega32 microcontroller 

      Akash, Ishtiaq Hafiz (BRAC University, 2018-08)
      Unlike other motors, stepper motor cannot give a continuous rotation. Hence, stepper motor is different from other motors. Stepper motor is a brushless DC motor that divides its full rotation into a number of equal steps, ...

    • Implementation of microstepping in stepper motor using ATmega32 microcontroller 

      Akash, Ishtiaq Hafiz (BRAC University, 2018-08)
      Unlike other motors, stepper motor cannot give a continuous rotation. Hence, stepper motor is different from other motors. Stepper motor is a brushless DC motor that divides its full rotation into a number of equal steps, ...

    • Improvement of power quality of CFL bulbs using active power factor correction circuit 

      Modak, Sudipta; Das, Tapas Kumar; Nabi, Mohammad Rafiqun (BRAC University, 2014-12)
      Power electronics is a means of controlling/processing in an appropriate way that is suitable for the load. Power conditioning is done to ensure higher efficiency and power density. Improved efficiency can reduce emission ...

    • Input switched single phase buck and buck-boost AC-DC converter with improved power quality 

      Khan, Mohammed Masum Siraj; Arifin, Md Shamsul; Hossain, Md Rubaiyat Tanvir; Kabir, Md Ashfanoor; Abedin, Amina Hasan; Choudhury, Mohammad Ali A Shoukat (© 2012 Institute of Electrical and Electronics Engineers Inc., 2012)
      Two new topologies of single-phase AC-DC converter using Buck and Buck-Boost conversion with low input current THD and high input power factor are proposed. Instead of using a single phase rectifier followed by a boost ...

    • Modeling UPS and enhancing the capability by integrating renewable sources 

      Mojumder, Arijit; Rahat, Md. Raisul Haque; Khan, MD. Abdur Rahim; Ahamed, Ajaz (BRAC University, 2014-12)
      Power outage or power line disturbances have detrimental effect on the operation of critical loads like computer controlling important process or medical equipment. The study of power line disturbances were done in the ...

    • A modular one-switch three-phase Single Ended Primary Inductor (SEPIC) rectifier 

      Bashar, Khandaker Lubaba; Islam, Samia M.Naeemul; Choudhury, Mohammad Ali A.Shoukat; Abedin, Amina Hasan; Uddin, Mohammad Nasir (© 2017 IEEE, 2017-04-26)
      An input switch based modular Single Ended Primary Inductor (SEPIC) three phase AC-DC converter is proposed in this paper. The proposed rectifier has the advantage of step-up/down voltage gain with boost input stage. Input ...

    • Output regulated one-switch three-phase boost and boost-buck (SEPIC) PFC rectifiers 

      Abedin, Amina Hasan; Bashar, Khandaker Lubaba; Islam, Samia M.Naeemul; Choudhury, Mohammad Ali A.Shoukat (© 2016 IEEE, 2016-11-22)
      New output regulated one-switch boost and boost-buck three phase rectifiers are presented in this paper. Proposed three phase ac-dc converters have power factor correction (PFC) and input current shaping facility in one ...

    • A single phase AC-AC boost converter with improved input power factor and THD 

      Kabir, Md. Ashfanoor; Abedin, Amina Hasan; Mustafiz, Rubiya Binta; Islam, Muhammed Kamrul; Choudhury, Mohammad Ali A Shoukat (© 2011 Institute of Electrical and Electronics Engineers Inc., 2011)
      A new circuit is proposed for single phase AC-AC conversion using Boost topology. Input Power factor, input current Total Harmonic Distortion (THD) and efficiency of the circuit are examined for the proposed circuit for ...