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dc.contributor.advisorAbedin, Dr. Amina Hasan
dc.contributor.authorMazumder, Md Imran Kayesh
dc.contributor.authorMahbub, Md Munem
dc.contributor.authorRahman, Muid
dc.contributor.authorAmin, Galib
dc.date.accessioned2018-01-22T06:07:22Z
dc.date.available2018-01-22T06:07:22Z
dc.date.copyright2017
dc.date.issued2017-12
dc.identifier.otherID 13121113
dc.identifier.otherID 13121097
dc.identifier.otherID 13121008
dc.identifier.otherID 13121065
dc.identifier.urihttp://hdl.handle.net/10361/9128
dc.descriptionThis thesis report is submitted in partial fulfilment of the requirements for the degree of Bachelor of Science in Electrical and Electronic Engineering, 2017.en_US
dc.descriptionCataloged from PDF version of thesis.
dc.descriptionIncludes bibliographical references (page 44-45).
dc.description.abstractConverters are electrical circuits that converts a voltage level to another. Inverter is used in different purposes of lives. DC-DC converters are also known as switching converters, switching power supplies or switches. DC-DC converters are important in portable device such as cellular phones and laptops. Why do we need DC-DC converter? For example, when we want to use a device with low voltage level, if we connected the device such as laptop or charger directly to the rectified supplied from the socket at home, the device might not functioning properly or it might be broken due to over current or overvoltage. Therefore, to avoid unnecessary damage to the equipment and devices, we would need to convert the voltage level to suitable voltage level for the equipment to function properly. Inverters are required in a variety of applications including electronic ballasts for gas discharge lamps and electrosurgical generators. Induction heater is another field where inverter is needed. It is one of the popular techniques of producing high temperature. Pulse Width Modulation or PWM technology is used in Inverters to give a steady output voltage of 230 or 110 V AC irrespective of the load. The Inverters based on the PWM technology are more superior to the conventional inverters. The use of MOSFETs in the output stage and the PWM technology makes these inverters ideal for all types of loads. Pulse width modulation is the process of modifying the width of the pulses in a pulse train direct proportion to a small control signal; the greater the control voltage, the wider the resulting pulses become. PWM inverters are among the most used power-electronic circuits in practical applications. These inverters are capable of producing ac voltages of variable magnitude as well as variable frequency. The quality of output voltage can also be greatly enhanced, when compared with square wave inverters. The PWM inverters are very commonly used in adjustable speed ac motor drive loads where one needs to feed the motor with variable voltage, variable frequency supply. For wide variation in drive speed, the frequency of the applied ac voltage needs to be varied over a wide range. The applied voltage also needs to vary almost linearly with the frequency. PWM inverters can be of single phase as well as three phase types.en_US
dc.description.statementofresponsibilityMd Imran Kayesh Mazumder
dc.description.statementofresponsibilityMd Munem Mahbub
dc.description.statementofresponsibilityMuid Rahman
dc.description.statementofresponsibilityGalib Amin
dc.format.extent45 pages
dc.language.isoenen_US
dc.publisherBARC Universityen_US
dc.rightsBRAC University thesis is protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.
dc.subjectConvertersen_US
dc.subjectDC-DC convertersen_US
dc.subjectPWMen_US
dc.subjectDC-AC convertersen_US
dc.subjectDesign and analysisen_US
dc.titleDesign and analysis of DC-DC PWM converter and DC-AC converteren_US
dc.typeThesisen_US
dc.contributor.departmentDepartment of Electrical and Electronic Engineering, BRAC University
dc.description.degreeB. Electrical and Electronic Engineering 


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