Synchronous Rectification Strategy for LLC Resonant DC-DC Converter

Abstract:

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High efficiency /high power density is one of the hottest research spots in power electronics technique. Due to simple structure and high conversion efficiency, the LLC resonant DC-DC converter has great utilization potential in many application areas. To improve the conversion efficiency and the power density further, synchronous rectifier is widely adopted at the secondary-side. Based on the existed synchronous rectified LLC resonant DC-DC converter reviewed in this paper, advantages and disadvantages are analyzed and compared in detail. A novel primary-side current sensing strategy and a new current driving method for voltage-doubler rectifier are presented. Finally, this paper proposes a family of novel single package structure for synchronous rectifier from the view point of power electronics integration to improve the performance further.

Info:

Periodical:

Advanced Materials Research (Volumes 317-319)

Edited by:

Xin Chen

Pages:

2138-2143

DOI:

10.4028/www.scientific.net/AMR.317-319.2138

Citation:

Z. Xu and G. X. Zhang, "Synchronous Rectification Strategy for LLC Resonant DC-DC Converter", Advanced Materials Research, Vols. 317-319, pp. 2138-2143, 2011

Online since:

August 2011

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Price:

$35.00

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