Implementation and study of constant-frequency llc resonant converter

Shi Yi Lin, Shih Kuen Changchien, Chien Ming Hong, Yi-Nung Chung

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationIntelligent Technologies and Engineering Systems
Pages643-653
Number of pages11
DOIs
Publication statusPublished - 2013 Aug 8
Event2012 1st International Conference on Intelligent Technologies and Engineering Systems, ICITES 2012 - Changhua, Taiwan
Duration: 2012 Dec 132012 Dec 15

Publication series

NameLecture Notes in Electrical Engineering
Volume234 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Other

Other2012 1st International Conference on Intelligent Technologies and Engineering Systems, ICITES 2012
CountryTaiwan
CityChanghua
Period12-12-1312-12-15

Fingerprint

Natural frequencies
Electric potential
Signal interference
Networks (circuits)

All Science Journal Classification (ASJC) codes

  • Industrial and Manufacturing Engineering

Cite this

Lin, S. Y., Changchien, S. K., Hong, C. M., & Chung, Y-N. (2013). Implementation and study of constant-frequency llc resonant converter. In Intelligent Technologies and Engineering Systems (pp. 643-653). (Lecture Notes in Electrical Engineering; Vol. 234 LNEE). https://doi.org/10.1007/978-1-4614-6747-2_75
Lin, Shi Yi ; Changchien, Shih Kuen ; Hong, Chien Ming ; Chung, Yi-Nung. / Implementation and study of constant-frequency llc resonant converter. Intelligent Technologies and Engineering Systems. 2013. pp. 643-653 (Lecture Notes in Electrical Engineering).
@inproceedings{54608f68b3054099881cdcca3053c904,
title = "Implementation and study of constant-frequency llc resonant converter",
abstract = "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.",
author = "Lin, {Shi Yi} and Changchien, {Shih Kuen} and Hong, {Chien Ming} and Yi-Nung Chung",
year = "2013",
month = "8",
day = "8",
doi = "10.1007/978-1-4614-6747-2_75",
language = "English",
isbn = "9781461467465",
series = "Lecture Notes in Electrical Engineering",
pages = "643--653",
booktitle = "Intelligent Technologies and Engineering Systems",

}

Lin, SY, Changchien, SK, Hong, CM & Chung, Y-N 2013, Implementation and study of constant-frequency llc resonant converter. in Intelligent Technologies and Engineering Systems. Lecture Notes in Electrical Engineering, vol. 234 LNEE, pp. 643-653, 2012 1st International Conference on Intelligent Technologies and Engineering Systems, ICITES 2012, Changhua, Taiwan, 12-12-13. https://doi.org/10.1007/978-1-4614-6747-2_75

Implementation and study of constant-frequency llc resonant converter. / Lin, Shi Yi; Changchien, Shih Kuen; Hong, Chien Ming; Chung, Yi-Nung.

Intelligent Technologies and Engineering Systems. 2013. p. 643-653 (Lecture Notes in Electrical Engineering; Vol. 234 LNEE).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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

UR - http://www.scopus.com/inward/citedby.url?scp=84881040127&partnerID=8YFLogxK

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

ER -

Lin SY, Changchien SK, Hong CM, Chung Y-N. Implementation and study of constant-frequency llc resonant converter. In Intelligent Technologies and Engineering Systems. 2013. p. 643-653. (Lecture Notes in Electrical Engineering). https://doi.org/10.1007/978-1-4614-6747-2_75