Title :
Optimal design methodology for LLC resonant converter
Author :
Lu, Bing ; Liu, Wenduo ; Liang, Yan ; Lee, Fred C. ; Van Wyk, Jacobus D.
Author_Institution :
Center for Power Electron. Syst., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
Although LLC resonant converter can achieve wide operation range with high efficiency, lack of design methodology makes it difficult to be implemented. In this paper, based on the theoretical analysis on the operation principles during normal condition and holdup time, the relationship between converter efficiency and operation range with different circuit parameters has be revealed. An optimal design methodology has been developed based on the revealed relationship. A 1MHz, 1kW LLC converter is designed to verify the proposed method.
Keywords :
resonant power convertors; 1 MHz; 1 kW; LLC resonant converter; converter efficiency; holdup time; Capacitors; Circuits; Design methodology; Magnetic resonance; Resonant frequency; Switching converters; Switching frequency; Thermal management; Zero current switching; Zero voltage switching;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2006. APEC '06. Twenty-First Annual IEEE
Print_ISBN :
0-7803-9547-6
DOI :
10.1109/APEC.2006.1620590
