TY - GEN
T1 - Implementation and study of constant-frequency llc resonant converter
AU - Lin, Shi Yi
AU - Changchien, Shih Kuen
AU - Hong, Chien Ming
AU - Chung, Yi-Nung
PY - 2013/8/8
Y1 - 2013/8/8
N2 - This chapter presents an LLC resonant converter with constant frequency. Since LLC resonant converters possess the advantages of high efficiency and low electromagnetic interference, they are widely used in many applications. However, the EMI filter design becomes more complex because of the variable-frequency operation of LLC resonant converter. Therefore, in this chapter, a circuit configuration of a buck converter cascade an LLC resonant converter, buck-fed LLC resonant converter, is proposed to complete constant-frequency operation and simplify the EMI filter design. The buck converter is applied in the proposed converter as the input source for the LLC resonant converter. In addition, by adjusting the output voltage of the buck converter, the output regulation and constant-frequency operation of the proposed converter can be achieved. Finally, a prototype of the buck-fed LLC resonant converter with input voltage 380-400 V and output 24 V/10 A is implemented. The experimental results demonstrate the feasibility of the proposed converter.
AB - This chapter presents an LLC resonant converter with constant frequency. Since LLC resonant converters possess the advantages of high efficiency and low electromagnetic interference, they are widely used in many applications. However, the EMI filter design becomes more complex because of the variable-frequency operation of LLC resonant converter. Therefore, in this chapter, a circuit configuration of a buck converter cascade an LLC resonant converter, buck-fed LLC resonant converter, is proposed to complete constant-frequency operation and simplify the EMI filter design. The buck converter is applied in the proposed converter as the input source for the LLC resonant converter. In addition, by adjusting the output voltage of the buck converter, the output regulation and constant-frequency operation of the proposed converter can be achieved. Finally, a prototype of the buck-fed LLC resonant converter with input voltage 380-400 V and output 24 V/10 A is implemented. The experimental results demonstrate the feasibility of the proposed converter.
UR - http://www.scopus.com/inward/record.url?scp=84881040127&partnerID=8YFLogxK
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U2 - 10.1007/978-1-4614-6747-2_75
DO - 10.1007/978-1-4614-6747-2_75
M3 - Conference contribution
AN - SCOPUS:84881040127
SN - 9781461467465
T3 - Lecture Notes in Electrical Engineering
SP - 643
EP - 653
BT - Intelligent Technologies and Engineering Systems
T2 - 2012 1st International Conference on Intelligent Technologies and Engineering Systems, ICITES 2012
Y2 - 13 December 2012 through 15 December 2012
ER -