Mohamed Elsayed Abdeltawab <br/><br/>
Design of switched mode power supply with unity power factor /  
 تصميم وحدة تغذية بنظام التقطيع ذات معامل قدرة واحد 
Mohamed Elsayed Abdeltawab ; Supervised Osama Ahmed Mahgoub , Ahmed Mohamed Saker 
 - Cairo :   Mohamed Elsayed Abdeltawab ,   2004 
 - 138P :   ill ;   30cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty Of Engineering - Department Of Electrical Power and Machines 
<br/><br/> Small size , light weight , high efficacy , longer lifetime and controllable output are the main advantages of Switched Mode Power Supplies over linear power suppliesHowever , power line quality and electromagnetic interference (EMI) issues arise when a simple peak rectifying circuit is usedTo suppress harmonic currents and improve power factor , input - current - shaping or power - factor - correction (PFC) techniques are necessary This thesis addresses switched mode power supply with added PFC stageThe proposed techniques include a Flyback switched mode power supply derived by single - stage boost PFC 
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<br/><br/><label>Subjects--Index Terms: </label>Control loop flyback PFC SMPS