Synthesis and analysis for a novel single-stage isolated high power factor correction converter

A novel single-stage isolated high power factor correction (HPFC) converter operating in the discontinuous conduction mode is proposed in this paper. It is an integration of a buck-boost converter with a flyback converter by means of components placement and synchronous switching technology. It can achieve HPFC, tight output voltage regulation and lower voltage stress of the bulk capacitor, which is independent of the loads. The small-signal mathematical model for the proposed converter is derived separately by the averaging method and the current injected equivalent circuit approach. The IsSpice simulations and experimental results successfully verify the dynamics and performances of the proposed converter.

[1]  J. Sun,et al.  Averaged modelling of switching power converters: reformulation and theoretical basis , 1992, PESC '92 Record. 23rd Annual IEEE Power Electronics Specialists Conference.

[2]  R. Redl,et al.  Design considerations for single-stage isolated power-factor-corrected power supplies with fast regulation of the output voltage , 1995, Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95.

[3]  Esam H. Ismail,et al.  Integrated high quality rectifier-regulators , 1992, PESC '92 Record. 23rd Annual IEEE Power Electronics Specialists Conference.

[4]  Tsai-Fu Wu,et al.  Analysis and design of an isolated single-stage converter achieving power-factor correction and fast regulation , 1999, IEEE Trans. Ind. Electron..

[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]  P.R.K. Chetty,et al.  Current Injected Equivalent Circuit Approach to Modeling Switching DC-DC Converters , 1981, IEEE Transactions on Aerospace and Electronic Systems.

[7]  R. Redl.  An economical single-phase passive power-factor-corrected rectifier: topology, operation, extensions, and design for compliance , 1998, APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition.

[8]  W. Qiu,et al.  A bi-flyback PFC converter with low intermediate bus voltage and tight output voltage regulation for universal input applications , 2002, APEC. Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.02CH37335).

[9]  Humberto Pinheiro,et al.  Analysis and design of a single stage power factor corrected full-bridge converter , 1999, APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285).

[10]  E. Rodriguez,et al.  A novel isolated high quality rectifier with fast dynamic output response , 1997, PESC97. Record 28th Annual IEEE Power Electronics Specialists Conference. Formerly Power Conditioning Specialists Conference 1970-71. Power Processing and Electronic Specialists Conference 1972.