Journal of South China University of Technology (Natural Science Edition) ›› 2013, Vol. 41 ›› Issue (7): 50-55.doi: 10.3969/j.issn.1000-565X.2013.07.009

• Mechanical Engineering • Previous Articles     Next Articles

Design and Experimental Analysis of High- Frequency Driver for High- Power Module

Wang Zhen- min1 Zhang Qin2 Du Gui- ping3   

  1. 1.School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China;2.School of Computer Science and Engineering,South China University of Technology,Guangzhou 510006,Guangdong,China;3.School of Electric Power,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2012-08-15 Revised:2013-03-26 Online:2013-07-25 Published:2013-06-01
  • Contact: 王振民(1974-)，男，博士，副教授，主要从事数字化电源及焊接自动化研究 E-mail:wangzhm@scut.edu.cn
  • About author:王振民(1974-)，男，博士，副教授，主要从事数字化电源及焊接自动化研究
  • Supported by:

    国家“863” 计划项目(2012AA110702);国家自然科学基金资助项目(50805051);广东省科技计划项目(2012B091000009);广州市科技支撑计划项目(2010J- D00201);华南理工大学中央高校基本科研业务费专项资金资助项目(2012ZZ0059)

PDF

722

Abstract:

 In order to meet the drive requirements for high- power modules,a low- cost high- frequency driver is pro-posed.In this driver,based on the magnetic insulation and modulation principle of modulated signals,the pulsesignal coupling and reconstruction methods are adopted to realize the reliable insulation and bi- direction transmi-ssion of driving signals,isolated DC/DC converters are used as the power supply to reduce the manufacturing costand enhance the isolation,the undersaturation detection and the blind- zone time optimization control are employed toprecisely detect short circuit/over current,the soft turn- off method is used to implement the over- voltage protection,and the preflexive mechanism is adopted to realize the fast and reliable protection of power module.Moreover,somedriving experiments on a high- power phase- shifting soft switching platform are carried out to compare the proposeddriver with some other parallel power modules.The results indicate that the proposed driver is of powerful driveenergy,low power consumption and temperature rise,perfect driving waveform and low cost,so that it fulfills thehigh- frequency driving requirement for high- power modules.

Key words: high- power module, high- frequency driver, magnetic insulation, signal reconstruction, preflexive pro-tection

CLC Number: