Analysis of multiple output SMPS topology for PC application

Computers, that enable better productivity and accuracy, are in common use today. Personal Computers requires two stage Switch Mode Power Supplies(SMPS) with multiple outputs delivering stiffly regulated and isolated DC voltages at different levels along with improved power quality. SMPS is the most prevailing architecture for DC power supply in modern systems, due to its ability to handle variable loads. A non isolated bridgeless Cuk converter operated in discontinuous conduction mode is used for power factor correction at front end. A half bridge converter has been used at the output end for achieving high frequency isolation and multiple DC output voltages. Such a configuration is considered as a better solution for obtaining the power quality and voltage regulation needed in situations of varying input and load fluctuations conditions. Performance of SMPS units is analyzed in Matlab/Simulink Software.

[1]  B. Singh,et al.  A simple control technique for single-SEPIC converter based multiple output SMPS with fully regulated and isolated outputs , 2007 .

[2]  Yungtaek Jang,et al.  Bridgeless High-Power-Factor Buck Converter , 2011, IEEE Transactions on Power Electronics.

[3]  Esam H. Ismail,et al.  Bridgeless SEPIC Rectifier With Unity Power Factor and Reduced Conduction Losses , 2009, IEEE Transactions on Industrial Electronics.

[4]  Bong-Hwan Kwon,et al.  Single-stage half-bridge converter using a coupled-inductor , 2005 .

[5]  G. Bhuvaneswari,et al.  A power factor corrected two stage switched mode power supply , 2012, 2012 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES).

[6]  Bhim Singh,et al.  Power factor corrected SMPS using Sheppard-Taylor converter , 2014, 2014 IEEE Students' Conference on Electrical, Electronics and Computer Science.

[7]  Hosein Farzanehfard,et al.  Bridgeless CUK power factor correction rectifier with reduced conduction losses , 2012 .

[8]  Gun-Woo Moon,et al.  A new half bridge converter for the personal computer power supply , 2008, 2008 IEEE Power Electronics Specialists Conference.

[9]  J. Sebastian,et al.  Design criteria for SEPIC and Cuk converters as power factor preregulators in discontinuous conduction mode , 1992, Proceedings of the 1992 International Conference on Industrial Electronics, Control, Instrumentation, and Automation.

[10]  W. Choi,et al.  A Bridgeless Single-Stage Half-Bridge AC/DC Converter , 2011, IEEE Transactions on Power Electronics.

[11]  E. H. Ismail,et al.  New Efficient Bridgeless Cuk Rectifiers for PFC Applications , 2012, IEEE Transactions on Power Electronics.

[12]  Milan M. Jovanovic,et al.  Performance Evaluation of Bridgeless PFC Boost Rectifiers , 2007, IEEE Transactions on Power Electronics.