Research on 12V DC/DC Converter for Pure Electric Vehicles

Si Li; Yan Wang; Tian Ming Yin

doi:10.4028/www.scientific.net/AMM.614.254

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 614Research on 12V DC/DC Converter for Pure Electric...

Research on 12V DC/DC Converter for Pure Electric Vehicles

Abstract:

As one of the important parts of PEV (Pure Electric Vehicles), the efficiency and power density of DC/DC converter are important indicators of its performance. The efficiency of hard-switching DC/DC converter is low, so it can’t meet the requirements of PEV. To overcome such kind of problems, a DC/DC converter of 12V-30A output for PEV with LLC half-bridge resonant circuit and synchronous rectification technology is presented in this paper. Firstly, the operational principle of LLC half-bridge resonant circuit is analyzed in detail. Then the parameters of resonant network are designed based on theoretical analysis and verified. Finally, an experimental prototype of 12V-30A output for PEV is built and the efficiency is over 90%. The experimental results and running performance in PEV of the presented DC/DC converter is good enough to replace the 12V Lead-acid battery, which has broad application prospects.

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Periodical:

Applied Mechanics and Materials (Volume 614)

Pages:

254-260

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.614.254

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Online since:

September 2014

Authors:

Si Li*, Yan Wang, Tian Ming Yin

Keywords:

Dc-Dc Converter, Efficiency, LLC, PEV

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* - Corresponding Author

References

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