Continuous-conduction-mode SEPIC converter with low reverse-recovery loss for power factor correction

A continuous-conduction-mode SEPIC converter with low reverse-recovery loss is proposed for power factor correction. The proposed SEPIC converter can reduce the reverse- recovery loss of the diodes and improve the power efficiency. By utilising a coupled inductor and an additional diode, zero-current turn-off of the output diode is achieved. The reverse-recovery current of the additional diode is reduced by the leakage inductor of the coupled inductor. The proposed SEPIC converter provides high power efficiency and high power factor compared to the conventional PFC circuits employing the SEPIC converter. An operation principle and a detailed analysis of the proposed converter are presented. Experimental results are discussed for a 300 W (330 V/0.9 A) prototype under the universal input voltage (90-265 V). It is shown that the efficiency of the SEPIC converter can be significantly improved.

[1]  Issa Batarseh,et al.  Comparison of basic converter topologies for power factor correction , 1998, Proceedings IEEE Southeastcon '98 'Engineering for a New Era'.

[2]  Oscar Garcia,et al.  Single phase power factor correction: a survey , 2003 .

[3]  F.T. Wakabayashi,et al.  Dimmable electronic ballast with high power factor SEPIC preregulator, for multiple tubular fluorescent lamps , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[4]  Jingquan Chen,et al.  Analysis and design of SEPIC converter in boundary conduction mode for universal-line power factor correction applications , 2001, 2001 IEEE 32nd Annual Power Electronics Specialists Conference (IEEE Cat. No.01CH37230).

[5]  Tore Undeland,et al.  Power Electronics: Converters, Applications and Design , 1989 .

[6]  R.W. Erickson,et al.  Reduction of voltage stresses in buck-boost-type power factor correctors operating in boundary conduction mode , 2003, Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2003. APEC '03..

[7]  Giorgio Spiazzi,et al.  Design criteria for power factor preregulators based on Sepic and Cuk converters in continuous conduction mode , 1994, Proceedings of 1994 IEEE Industry Applications Society Annual Meeting.

[8]  I. Barbi,et al.  A unity power factor multiple isolated outputs switching mode power supply using a single switch , 1991, [Proceedings] APEC '91: Sixth Annual Applied Power Electronics Conference and Exhibition.

[9]  Dragan Maksimovic,et al.  Power factor correctors based on coupled-inductor Sepic and Cuk converters with nonlinear-carrier control , 1998, APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition.

[10]  Javier Uceda,et al.  The discontinuous conduction mode Sepic and Cuk power factor preregulators: analysis and design , 1997, IEEE Trans. Ind. Electron..

[11]  D.S.L. Simonetti,et al.  Multiple alternatives of regenerative snubber applied to Sepic and Cuk converters , 2002, IEEE 2002 28th Annual Conference of the Industrial Electronics Society. IECON 02.

[12]  Jose A. Cobos,et al.  Voltage-follower control in zero-current-switched quasi-resonant power factor preregulators , 1995 .