Lại nhờ anh Picvendor down giúp em bài này:
1. Phase Locked Loop (PLL) based self-oscillating controller for LCC resonant converters:
http://ieeexplore.ieee.org/Xplore/lo...hDecision=-203
2.
Operating Characteristics in LCLC Resonant Converter with A Low Coupling Transformer
http://ieeexplore.ieee.org/Xplore/lo...hDecision=-203
Em cảm ơn anh nhiều !!