An LLC resonant full-bridge inverter-link DC-DC converter with an anti-resonant circuit for practical voltage step-up/down regulation

Author

Mishima, Tomokazu ; Mizutani, Hiroto ; Nakaoka, Mutsuo

Author_Institution

Grad. Sch. of Maritime Sci., Kobe Univ., Kobe, Japan

fYear

2012

fDate

15-20 Sept. 2012

Firstpage

3533

Lastpage

3540

Abstract

A novel LLC resonant dc-dc converter with an anti-resonant circuit (ARC) is presented in this paper. The LLC dc-dc converter with ARC can improve the sensitivity of voltage conversion ratio in the dc voltage step-down area, then achieve the excellent performance on the output voltage and power regulations by pulse frequency modulation (PFM) under soft switching conditions. The theoretical analysis and the experiment results on the essential switching and steady-state performances including the power loss analysis of the proposed LLC dc-dc converter are demonstrated, and its practical effectiveness is described. Furthermore, the modified LLC dc-dc converter with ARC is newly introduced and its essential performances are demonstrated by a simulation analysis.

Keywords

DC-DC power convertors; LC circuits; power control; pulse frequency modulation; resonant power convertors; voltage control; zero current switching; zero voltage switching; ARC; DC voltage step-up-down regulation; LLC resonant full-bridge inverter-link DC-DC converter; PFM; antiresonant circuit; output voltage regulation; power loss analysis; power regulation; pulse frequency modulation; simulation analysis; soft switching condition; theoretical analysis; voltage conversion sensitivity ratio; Frequency modulation; Magnetic resonance; RLC circuits; Voltage control; Windings; Zero current switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2012 IEEE

Conference_Location

Raleigh, NC

Print_ISBN

978-1-4673-0802-1

Electronic_ISBN

978-1-4673-0801-4

Type

conf

DOI

10.1109/ECCE.2012.6342490

Filename

6342490