Presentation 2023-03-06
Small signal transfer function of duty cycle LLC resonant
Himawari Adachi, Terukazu Sato,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) This paper presents the results of a study on the small-signal transfer function of an LLC current resonant DC-DC converter that utilizes the resonance phenomenon between a inductor and a capacitor. LLC resonant converter is widely used in various electronic devices such as servers and display devices because of the advantages of compact, lightweight, high efficiency, and low noise. Pulse frequency modulation (PFM) is typically used to control current resonant converters, however it has disadvantaged that filter must be designed for the lowest switching frequency. Therefore, the frequency characteristics were analyzed by controlling a resonant converter with pulse width modulation (PWM) using a double voltage rectifier circuit to achieve output voltage stabilization.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) LLC current resonant converter / PWM / frequency characteristics / duty cycle control
Paper # EE2022-58
Date of Issue 2023-02-27 (EE)

Conference Information
Committee EE
Conference Date 2023/3/6(1days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Yoshiyasu Nakashima(NXTEC)
Vice Chair Hiroo Sekiya(Chiba Univ.) / Hiroaki Kusawake(JAXA)
Secretary Hiroo Sekiya(Aichi Inst. of Tech.) / Hiroaki Kusawake(Nagasaki Inst. of Applied Science)
Assistant Yuu Yonezawa(Nagoya Univ.) / Yudai Furukawa(Fukuoka Univ.) / Kazufumi Yuasa(NTT Facilities)

Paper Information
Registration To Technical Committee on Energy Engineering in Electronics and Communications
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Small signal transfer function of duty cycle LLC resonant
Sub Title (in English)
Keyword(1) LLC current resonant converter
Keyword(2) PWM
Keyword(3) frequency characteristics
Keyword(4) duty cycle control
1st Author's Name Himawari Adachi
1st Author's Affiliation Oita University(Oita Univ.)
2nd Author's Name Terukazu Sato
2nd Author's Affiliation Oita University(Oita Univ.)
Date 2023-03-06
Paper # EE2022-58
Volume (vol) vol.122
Number (no) EE-418
Page pp.pp.19-23(EE),
#Pages 5
Date of Issue 2023-02-27 (EE)