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

Park, Ki-Hyeon; Choi, Yeong-Jun; Choi, See-Young; Kim, Rae Young

doi:10.1109/IFEEC.2015.7361597

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

Park, Ki-Hyeon;
Choi, Yeong-Jun;
Choi, See-Young;
Kim, Rae Young

Citations

SCOPUS

13

초록

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.

키워드

Charging (batteries); Controllers; Design; Electric batteries; Ions; Lithium; Power converters; Secondary batteries; Constant current and constant voltages; Cross-over frequencies; Describing function methods; Design considerations; Li-ion battery chargers; LLC resonant converter; Small signal AC models; Theoretical approach; Lithium-ion batteries

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

저자: Park, Ki-Hyeon; Choi, Yeong-Jun; Choi, See-Young; Kim, Rae Young

DOI: 10.1109/IFEEC.2015.7361597

발행일: 2015-12

유형: Conference Paper

저널명: 2015 IEEE 2nd International Future Energy Electronics Conference, IFEEC 2015

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