Design and Implementation of an Accurately Regulated Multiple Output ZVS DC–DC Converter

An accurately regulated multiple-output zero-voltage switching (ZVS) DC-DC converter is proposed. The converter is composed of three outputs altogether. The first and second outputs are regulated through the duty cycle control of two asymmetrical half bridge converters, while the third output is regulated through the phase shift of the two asymmetrical half bridge converters. The characteristic of this multiple-output dc-dc converter is analyzed and design process is investigated. ZVS is realized for all the main switches. Therefore this multiple-output dc-dc converter can operate with higher efficiency at higher switching frequency. The operation stages, ZVS condition and control detail are also presented. A 400 V input, 48 V/10 A, 5 V/20 A, 12 V/5 A outputs prototype is built to verify the design. The efficiency at rated input voltage full load is 93.36%.

[1]  F. Lee,et al.  Novel full bridge zero-voltage-transition PWM DC/DC converter for high power applications , 1994, Proceedings of 1994 IEEE Applied Power Electronics Conference and Exposition - ASPEC'94.

[2]  J. Pleite,et al.  PWM-PD multiple output DC/DC converters: operation and control-loop modeling , 2004, IEEE Transactions on Power Electronics.

[3]  Yie-Tone Chen,et al.  Small-signal modeling of magnetic amplifier post regulators with current-mode control , 2000, IEEE Trans. Ind. Electron..

[4]  Slobodan Cuk,et al.  Novel soft-switching full-bridge converter with magnetic amplifiers , 1994, Proceedings of Intelec 94.

[5]  J. Lee,et al.  Megamp post regulators-practical design considerations to allow operation under extreme loading conditions , 1990 .

[6]  Praveen Jain,et al.  A forward converter topology with independently and precisely regulated multiple outputs , 2003 .

[7]  E. Maset,et al.  Application of a novel parallel regulation technique in a two output forward converter , 1999, 30th Annual IEEE Power Electronics Specialists Conference. Record. (Cat. No.99CH36321).

[8]  Yanjun Zhang,et al.  Accurately regulated multiple output ZVS dc-dc converter , 2006, Twenty-First Annual IEEE Applied Power Electronics Conference and Exposition, 2006. APEC '06..

[9]  Xuefei Xie,et al.  A novel high frequency current-driven synchronous rectifier for low voltage high current applications , 2001, APEC 2001. Sixteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.01CH37181).

[10]  J. Uceda,et al.  A complete study of the double forward-flyback converter , 1988, PESC '88 Record., 19th Annual IEEE Power Electronics Specialists Conference.

[11]  Dan Chen,et al.  Magamp post regulators-practical design considerations to allow operation under extreme loading conditions , 1988, APEC '88 Third Annual IEEE Applied Power Electronics Conference and Exposition.

[12]  H. E. Tacca,et al.  Single-switch two-output flyback-forward converter operation , 1998 .

[13]  J. Sebastian,et al.  Study of the applicability of self-driven synchronous rectification to resonant topologies , 1992, PESC '92 Record. 23rd Annual IEEE Power Electronics Specialists Conference.

[14]  Y.-L. Lin,et al.  A new synchronous-switch post regulator for multi-output forward converters , 1990, Fifth Annual Proceedings on Applied Power Electronics Conference and Exposition.

[15]  J.B. Ejea,et al.  Small-signal modeling of a controlled transformer parallel regulator as a multiple output converter high efficient post-regulator , 2004, IEEE Transactions on Power Electronics.

[16]  A. Barrado,et al.  Multiple output DC/DC converters based on PWM-pulse delay control (PWM-PD) , 1999, 30th Annual IEEE Power Electronics Specialists Conference. Record. (Cat. No.99CH36321).

[17]  G. Levin,et al.  A new secondary side post regulator (SSPR) PWM controller for multiple output power supplies , 1995, Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95.

[18]  Wei Chen,et al.  Magamp post regulation for flyback converter , 2001, 2001 IEEE 32nd Annual Power Electronics Specialists Conference (IEEE Cat. No.01CH37230).

[19]  S. Chakraborty,et al.  A novel converter topology for multiple individually regulated outputs , 2006, IEEE Transactions on Power Electronics.