BRAC University Institutional Repository

Browsing by Author "Abedin, Amina Hasan"

Browsing by Author "Abedin, Amina Hasan"

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  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • Tushar, Mehedi Hasan (BRAC University, 2012)
  • 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 ...
  • 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 ...
  • Surjo, Md. Rafiqur Rahman; Amin, Md. Afsarul (BRAC University, 2011-12)
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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, ...
  • 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, ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...