Research on novel input-paralleled output-paralleled half-bridge converter

This paper proposes an input-paralleled output-paralleled half-bridge converter based on single half-bridge converter, which is very suitable for the low output voltage and large output current application. All modules share a common capacitor-leg, that can reduce the number of main circuitpsilas capacitors and make topology simple. The traits and rules of combination converter are introduced and its model is founded. The reasons of not being current-sharing are discussed. The corresponding current-sharing control method is presented and designed, at the same time, interleaving control technology is introduced. Simulation results show that the proposed half-bridge combination topology structure and the corresponding control method are feasible, the effect of current-sharing and output performance are better. This topology has extensive application foreground.

[1]  Dehong Xu,et al.  Comparison of interleaving methods of two-transistor forward converters , 1999, Proceedings of the IEEE 1999 International Conference on Power Electronics and Drive Systems. PEDS'99 (Cat. No.99TH8475).

[2]  Milan M. Jovanovic,et al.  Analysis, design, and performance evaluation of droop current-sharing method , 2000, APEC 2000. Fifteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.00CH37058).

[3]  Fred C. Lee,et al.  A classification and evaluation of paralleling methods for power supply modules , 1999, 30th Annual IEEE Power Electronics Specialists Conference. Record. (Cat. No.99CH36321).

[4]  Peng Xu,et al.  A novel current-sharing control technique for low-voltage high-current voltage regulator module applications , 2000 .

[5]  F. C. Lee,et al.  Modeling and dynamic analysis of paralleled DC/DC converters with master-slave current sharing control , 1996, Proceedings of Applied Power Electronics Conference. APEC '96.

[6]  R. Ayyanar,et al.  Common-duty-ratio control of input-series connected modular DC-DC converters with active input voltage and load-current sharing , 2006, IEEE Transactions on Industry Applications.

[7]  R. Ayyanar,et al.  Common duty ratio control of input series connected modular DC-DC converters with active input voltage and load current sharing , 2003, Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2003. APEC '03..

[8]  George C. Verghese,et al.  Analysis and control design of paralleled DC/DC converters with current sharing , 1998 .

[9]  B. Lu,et al.  Dynamic performance analysis of outer-loop current sharing control for paralleled DC-DC converters , 2005, Twentieth Annual IEEE Applied Power Electronics Conference and Exposition, 2005. APEC 2005..

[10]  Dong-Seok Hyun,et al.  A hybrid control scheme of asymmetrical half-bridge converter with low voltage stresses of the diodes , 2003, IECON'03. 29th Annual Conference of the IEEE Industrial Electronics Society (IEEE Cat. No.03CH37468).

[11]  C. K. Michael Tse,et al.  Circuit Theoretic Classification of Parallel Connected DC–DC Converters , 2007, IEEE Transactions on Circuits and Systems I: Regular Papers.

[12]  Chi K. Tse,et al.  Design-oriented hopf bifurcation boundary in parallel-connected buck converters under democratic current-sharing control , 2006 .