Hoque, Dr. Md. AshrafulMasud, Ali Tanjim BinKabir, Md. IshmamZannat, MeftahulBanik, Niloy2018-11-072018-11-0720182018-10ID 13121170ID 13121038ID 12221076ID 13121127http://hdl.handle.net/10361/10820Catalogued from PDF version of thesis.Includes bibliographical references (page 41-42).This thesis is submitted in partial fulfilment of the requirements for the degree of Bachelor of Science in Electrical and Electronic Engineering, 2018.The modern electronic devices operate with low DC output voltage. The AC utility supply needs to be converted and step down to a suitable DC voltage. During earlier days, the converters were huge in size and were expensive too. A remarkable reduction in size and price was possible due to the invention of switch mode power supply. This goal by expanding the power density which is achievable by decreasing the size of the passive/energy storage components such as the inductors, capacitors and the transformer. For better utilization of the existing electric energy the entire power system should be operated at high efficiency for that reason now a days we use different types of converter. In this thesis, study of the AC-DC converters are carried out along with relevant simulations to realize the deeper understanding on the topic Therefore, the main objective of this research is to study in detailed the working principles and applications of linear power supply in ac to dc converter.52 pagesenThis thesis is submitted in partial fulfilment of the requirements for the degree of Bachelor of Science in Electrical and Electronic Engineering, 2018.Electric current converters.Power electronics.Electric current converters.Switching power supplies.Thesis