A full-bridge DC-DC converter with zero-voltage-switching over the entire conversion range Article

Borage, M, Tiwari, S, Bhardwaj, S et al. (2008). A full-bridge DC-DC converter with zero-voltage-switching over the entire conversion range . IEEE TRANSACTIONS ON POWER ELECTRONICS, 23(4), 1743-1750. 10.1109/TPEL.2008.925203

cited authors

  • Borage, M; Tiwari, S; Bhardwaj, S; Kotaiah, S

authors

abstract

  • A new topology of full-bridge dc-dc converter is proposed featuring zero-voltage-switching (ZVS) of active switches over the entire conversion range. In contrast to conventional techniques, the stored energy in the auxiliary inductor of the proposed converter is minimal under full-load condition and it progressively increases as the load current decreases. Therefore, the ZVS operation over the entire conversion range is achieved without significantly increasing full-load conduction loss making the converter particularly suitable in applications where the output is required to be adjustable over a wide range and load resistance is fixed (e.g., an electromagnet power supply). The principle of operation is described and the considerations in the design of converter are discussed. Performance of the proposed converter is verified with experimental results on a 500-W, 100-kHz prototype. © 2008 IEEE.

publication date

  • July 1, 2008

published in

Digital Object Identifier (DOI)

start page

  • 1743

end page

  • 1750

volume

  • 23

issue

  • 4