Average Current Mode Control for LLC Series Resonant DC-to-DC Converters

다국어 초록 (Multilingual Abstract)

An average current mode control scheme that consistently offers good dynamic performance for LLC series resonant DC-to-DC converters irrespective of the changes in the operational conditions is presented in this paper. The proposed control scheme employs current feedback from the resonant tank circuit through an integrator-type compensation amplifier to improve the dynamic performance and enhance the noise immunity and reliability of the feedback controller. Design guidelines are provided for both current feedback and voltage feedback compensation. The performance of the new control scheme is demonstrated through an experimental 150 W converter operating with 340 V to 390 V input voltage to provide a 24 V output voltage.

목차 (Table of Contents)

• Abstract
• Ⅰ. INTRODUCTION
• Ⅱ. SMALL-SIGNAL DYNAMICS AND BENEFITS OF AVERAGE CURRENT MODE CONTROL
• Ⅲ. DESIGN OF THE AVERAGE CURRENT MODE CONTROL
• Ⅳ. PERFORMANCE OF THE AVERAGE CURRENT MODE CONTROL
• Ⅴ. CONCLUSIONS
• REFERENCES

참고문헌 (Reference)

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3 B. Yang, "Small-signal analysis for LLC resonant converter" S 7.3 : 144-149, 2003

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5 E. X. Yang, "Extended describing function method for small signal modelling of resonant and multi resonant converters" Virginia Polytechnic Institute and State University 1994

6 J. Jang, "Dynamic analysis and control design of optocoupler-isolated LLC series resonant converters with wide input and load variations" 5 : 755-764, 2012

7 J. Jang, "Current mode control for LLC series resonant dc-to-dc converters" 21-27, 2011

8 M. P. Foster, "Analysis of CLL voltage-output resonant converters using describing functions" 23 (23): 1772-1780, 2008