Efficiency optimized asymmetric half-bridge converter with hold-up time compensation

In this paper, a new asymmetric half-bridge (AHB) converter integrated with hold-up time compensation circuit is proposed. The AHB converter is one of the most promising topologies in low-to-mid power applications because of zero-voltage switching (ZVS) of all switches and small number of components. But when the converter is designed considering the hold-up time condition, it has large transformer offset-current and small transformer turns-ratio. Although many researchers have studied to solve this problem, the advantages of conventional works are limited by losses from additional components. To solve this problem, a new AHB converter with an optimized efficiency is proposed in this paper. Since the proposed converter increases voltage gain using integrated boost converter during the hold-up time, it can be designed to obtain an optimized efficiency in nominal state, without losses from the additional components.

[1]  A. Nemchinov,et al.  Asymmetrical half-bridge in a single stage PFC AC/DC converter , 1997, Proceedings of APEC 97 - Applied Power Electronics Conference.

[2]  Gun-Woo Moon,et al.  A new Single-Stage PFC AC/DC converter with Voltage-Doubler Rectified Asymmetric Half-Bridge converter , 2007, 2007 7th Internatonal Conference on Power Electronics.

[3]  A.M. Khambadkone,et al.  A 1-MHz Zero-Voltage-Switching Asymmetrical Half-Bridge DC/DC Converter: Analysis and Design , 2006, IEEE Transactions on Power Electronics.

[4]  Gun-Woo Moon,et al.  A new-half bridge converter without DC offset of magnetizing current , 2007, 2007 7th Internatonal Conference on Power Electronics.

[5]  Weihong Qiu,et al.  Asymmetric half bridge soft-switching PFC converter with direct energy transfer , 2002, 2002 IEEE 33rd Annual IEEE Power Electronics Specialists Conference. Proceedings (Cat. No.02CH37289).

[6]  D. G. Lamar,et al.  Design of a Soft-Switching Asymmetrical Half-Bridge Converter as Second Stage of an LED Driver for Street Lighting Application , 2012, IEEE Transactions on Power Electronics.

[7]  Peng Xu,et al.  Range winding for wide input range front end DC/DC converter , 2001, APEC 2001. Sixteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.01CH37181).

[8]  J. Abu-Qahouq,et al.  Zero-voltage-switching half-bridge DC-DC converter with modified PWM control method , 2004, IEEE Transactions on Power Electronics.

[9]  Shiladri Chakraborty,et al.  An improved asymmetric half-bridge converter with zero DC offset of magnetizing current , 2015, 2015 IEEE Applied Power Electronics Conference and Exposition (APEC).

[10]  Chern-Lin Chen,et al.  Analysis and design of two-transformer asymmetrical half-bridge converter , 2002, 2002 IEEE 33rd Annual IEEE Power Electronics Specialists Conference. Proceedings (Cat. No.02CH37289).

[11]  Y. Jang,et al.  Hold-up time extension Circuit with integrated magnetics , 2005, IEEE Transactions on Power Electronics.

[12]  Gun-Woo Moon,et al.  Asymmetric PWM Control Scheme During Hold-Up Time for $LLC$ Resonant Converter , 2012, IEEE Transactions on Industrial Electronics.

[13]  J. Sebastian,et al.  An overall study of the half-bridge complementary-control DC-to-DC converter , 1995, Proceedings of PESC '95 - Power Electronics Specialist Conference.

[14]  Lipei Huang,et al.  A combined front end DC/DC converter , 2003, Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2003. APEC '03..

[15]  N. Mohan,et al.  Asymmetrical duty cycle permits zero switching loss in PWM circuits with no conduction loss penalty , 1991, Conference Record of the 1991 IEEE Industry Applications Society Annual Meeting.

[16]  Peng Xu,et al.  The optimization of asymmetric half bridge converter , 2001, APEC 2001. Sixteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.01CH37181).

[17]  Gun-Woo Moon,et al.  A New Asymmetrical Half-Bridge Converter With Zero DC-Offset Current in Transformer , 2013, IEEE Transactions on Power Electronics.

[18]  X. Ruan,et al.  Isolated Buck–Boost DC/DC Converters Suitable for Wide Input-Voltage Range , 2011, IEEE Transactions on Power Electronics.