Single-Stage Single-Switch High-Power-Factor Boost-Forward Converter with FM and PWM Composite Control

This paper presents the single-stage boost-forward converter with pulse-width modulation and frequency modulation composite control. The feature of this composite control is the ripple of output voltage can be reduced by pulse-width modulation and the harmonic of input current can also be reduced by frequency modulation. Therefore, the higher efficiency of system is achieved. In this way, the pulse-width and frequency modulation are mainly controlled by the feedback voltage and the larger variation of duty-cycle would be improved when input current is changed and input voltage is dropped to low voltage level. In result, the ripple of output voltage and the harmonic of input current would be reduced. The experiment is carried out to verify this composite control method by compare to the single-stage high-power-factor boost-forward converter with single modulation control.

[1]  Po-Yuan Chen,et al.  An Efficient Active LC Snubber for Forward Converters , 2009, IEEE Transactions on Power Electronics.

[2]  Bor-Ren Lin,et al.  Analysis, design, and implementation of an active clamp forward converter with synchronous rectifier , 2006, IEEE Transactions on Circuits and Systems I: Regular Papers.

[3]  B.-R. Lin,et al.  Analysis and implementation of ZVS forward converter with centre-tapped rectifier , 2006 .

[4]  Esther de Jódar,et al.  Optimizing the Design of Single-Stage Power-Factor Correctors , 2007, IEEE Transactions on Industrial Electronics.

[5]  R. Redl,et al.  A new family of single-stage isolated power-factor correctors with fast regulation of the output voltage , 1994, Proceedings of 1994 Power Electronics Specialist Conference - PESC'94.

[6]  M.Z. Youssef,et al.  A Novel Single Stage AC–DC Self-Oscillating Series-Parallel Resonant Converter , 2005, IEEE Transactions on Power Electronics.

[7]  F.C. Lee,et al.  A Novel Driving Scheme for Synchronous Rectifiers in LLC Resonant Converters , 2009, IEEE Transactions on Power Electronics.

[8]  Yim-Shu Lee,et al.  Novel single-stage isolated power-factor-corrected power supplies with regenerative clamping , 1998 .

[9]  M.M. Hernando,et al.  A new input current shaping technique using converters operating in continuous conduction mode , 1998, PESC 98 Record. 29th Annual IEEE Power Electronics Specialists Conference (Cat. No.98CH36196).

[10]  Adrian Ioinovici,et al.  Switched-Capacitor/Switched-Inductor Structures for Getting Transformerless Hybrid DC–DC PWM Converters , 2008, IEEE Transactions on Circuits and Systems I: Regular Papers.

[11]  Abraham Pressman,et al.  Switching Power Supply Design , 1997 .