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Design consideration of CC-CV controller of LLC resonant converter for Li-ion battery charger

Title
Design consideration of CC-CV controller of LLC resonant converter for Li-ion battery charger
Author
김래영
Keywords
Voltage control; Mathematical model; Batteries; Switching frequency; Capacitors; Battery chargers; Integrated circuits
Issue Date
2015-11
Publisher
IEEE
Citation
2015 IEEE 2nd International Future Energy Electronics Conference, IFEEC 2015, Article number 7361597, Page. 1-6
Abstract
In this paper, the design consideration of the dual control scheme of a LLC resonant converter for a Li-ion battery charger is proposed to stabilize operation during whole charging process. The theoretical approach of constant-current and constant-voltage controller is presented when considering the nonlinear property of a Li-ion battery under wide ranged output voltage. By applying the extended describing function method, the small-signal ac model of the resonant converter is obtained. The feedback controller is designed to guarantee stable and robust, while providing a desired crossover frequency and sufficient phase margin. Several simulation results are provided in order to verify the effectiveness of the proposed design consideration. © 2015 IEEE.
URI
http://ieeexplore.ieee.org/document/7361597/http://hdl.handle.net/20.500.11754/29071
ISBN
978-1-4799-7657-7; 978-1-4799-7655-3
DOI
10.1109/IFEEC.2015.7361597
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRICAL AND BIOMEDICAL ENGINEERING(전기·생체공학부) > Articles
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