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

作者：Park Chang Hee; Cho Sung Ho; Jang Jinhaeng; Pidaparthy Syam Kumar; Ahn Taeyoung; Choi Byungcho^*

来源：Journal of Power Electronics, 2014, 14(1): 40-47.

DOI：10.6113/JPE.2014.14.1.40

• Average current mode control
• Closed-loop performance
• Control design
• Dynamic analysis
• LLC
• series resonant converters

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.

• 出版日期2014-1