Title :
A novel resonant LLC soft-switching buck converter
Author :
Jabbari, Masoud ; Kazemi, Hamed ; Hematian, Nahid ; Shahgholian, Ghazanfar
Author_Institution :
Electr. Eng. Dept., Islamic Azad Univ., Isfahan, Iran
Abstract :
A new LLC resonant DC-DC buck converter is presented. The employed multi-resonant tank provides soft-switching conditions for all semiconductor devices independent from the operating voltages and the load current. The proposed converter enjoys useful advantages such as low element count, unconditional soft switching operation, self short-circuit protection, high efficiency and low EMI. Circuit analysis and important relations are presented in this paper. Experimental results from a 60W laboratory prototype confirm the presented theoretical analysis.
Keywords :
DC-DC power convertors; LC circuits; electromagnetic interference; resonant power convertors; switching convertors; zero current switching; zero voltage switching; EMI; LLC resonant DC-DC buck converter; circuit analysis; electromagnetic interference; load current; multiresonant tank; power 60 W; resonant LLC soft-switching buck converter; self short-circuit protection; semiconductor devices; soft-switching conditions; Capacitors; Electrical engineering; Prototypes; Resonant frequency; Switches; Zero current switching; Zero voltage switching; DC-DC converter; ZCS; buck converter; power supply; soft-switching;
Conference_Titel :
Industrial Electronics (ISIE), 2014 IEEE 23rd International Symposium on
Conference_Location :
Istanbul
DOI :
10.1109/ISIE.2014.6864641
