Title :
Using Automatic Frequency Shifting Techniques for LLC-SRC Output Voltage Regulation
Author :
Shyu, Kuo-Kai ; Lai, Ching-Ming ; Jwo, Ko-Wen ; Pan, Ming-Ho ; Ku, Chung-Ping
Author_Institution :
Dept. of Electr. Eng., Nat. Central Univ., Taiwan
Abstract :
In this paper, an automatic frequency shifting technique is developed for achieving output voltage regulation of LLC series resonant converter (LLC-SRC). Furthermore, the operating modes and dc characteristics are discussed for designing the steady state operating point. Finally, an LLC-SRC, rated about 90 W with operating frequency range from 92 KHz to 102 KHz is provided to verify the control strategy. As theoretical analysis, the proposed system gives a satisfactory result within the overall load range. This technique is very promising in resonant converter applications
Keywords :
resonant power convertors; 92 KHz to 102 KHz; LLC-SRC; automatic frequency shifting technique; dc characteristics; output voltage regulation; series resonant converter; steady state operating point; Automatic frequency control; Frequency conversion; Magnetic resonance; Partial response channels; Pulse width modulation; Steady-state; Switching converters; Voltage control; Zero current switching; Zero voltage switching; Frequency shifting technique; LLC-SRC;
Conference_Titel :
Power Electronics and Motion Control Conference, 2006. IPEMC 2006. CES/IEEE 5th International
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0448-7
DOI :
10.1109/IPEMC.2006.4778267
