Title :
Small Signal Modeling of LLC Resonant Converters Based on Extended Describing Function
Author :
Chang, Chien-Hsuan ; Chang, En-Chih ; Cheng, Chun-An ; Cheng, Hung-Liang ; Lin, Sheng-Chang
Author_Institution :
Dept. of Electr. Eng., I-Shou Univ., Kaohsiung, Taiwan
Abstract :
Due to the advantages of low switching loss and high efficiency, LLC resonant converters have been widely used. Based on the extended describing function concept, the small-signal model of an LLC resonant converter is derived in this paper. The equivalent circuit of small-signal model is illustrated so that the corresponding frequency response can be easily obtained by using IsSpice simulation. The well agreement with experimental measurements has verified the accuracy of the derived small-signal model.
Keywords :
equivalent circuits; frequency response; resonant power convertors; IsSpice simulation; LLC resonant converters; equivalent circuit; extended describing function; frequency response; small signal modeling; Accuracy; Equivalent circuits; Integrated circuit modeling; Mathematical model; Resonant frequency; Switching frequency; Video recording; Extended Describing Function; LLC Resonant Converter; Small Signal Model;
Conference_Titel :
Computer, Consumer and Control (IS3C), 2012 International Symposium on
Conference_Location :
Taichung
Print_ISBN :
978-1-4673-0767-3
DOI :
10.1109/IS3C.2012.99
