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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국과학기술원 정보전자연구소 IDEC Journal of Integrated Circuits and Systems IDEC Journal of Integrated Circuits and Systems Vol.7 No.4
- 발행연도
- 2021.10
- 수록면
- 27 - 32 (6page)
- DOI
- 10.23075/jicas.2021.7.4.006
이용수
초록· 키워드
오류제보하기
This paper proposes a Li-ion battery switching charger with a three-level DC-DC buck converter adopting a loop-free auto-calibration technique for self-balancing of two flying capacitors. The proposed Li-ion battery switching charger provides four operation modes including trickle, pre-charge, constant current (CC) and constant voltage (CV) mode as the Li-ion battery voltage level. It is designed by 0.13-μm CMOS BCD process and used 0805 size two flying capacitors of 4.7 μF each and an inductor of 10 μH with a DC resistance (DCR) of 100 mΩ as output components. The core chip size without pads is 3.7 × 3.7 mm2. The measurement verified the proposed loop-free auto-calibration scheme and the simulation result shows charging process. The supply voltage is 9 V and the load voltage condition varies 2.7-4.2 V and the maximum load current is 1.5 A. The simulation peak efficiency of constant current mode is 93.2% at 1 MHz switching.
목차
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참고문헌 (12)
참고문헌 신청
M. -G. Jeong / 2016 / Switching battery charger integrated circuit for mobile devices in a 130-nm BCDMOS process / IEEE Trans. Power Electron 31(11):7943~7952
M. Chen / 2006 / Accurate, compact, and power-efficient Li-ion battery charger circuit / IEEE Trans. Circuits Syst. II, Exp. Briefs 53(11):1180~1184
C. -H. Lin / 2010 / A Li-ion battery charger with smooth control circuit(SCC)and built-in resistance compensator(BRC)for achieving stable and fast charging / IEEE Trans. Circuits Syst. I, Reg. Papers 57(2):506~517
R. Pagano / 2012 / A 0. 18-μm monolithic Li-ion battery charger for wireless devices based on partial current sensing and adaptive reference voltage / IEEE J. Solid-State Circuits 47(6):1355~1368
T. C. Huang / 2014 / Fast charging and high efficiency switching-based charger with continuous built-in resistance detection and automatic energy deliver control for portable electronics / IEEE J. Solid-State Circuits 49(7):1580~1594
M. Chen / 2006 / Accurate, compact, and power-efficient Li-ion battery charger circuit / IEEE Trans. Circuits Syst. II, Exp. Briefs 53(11):1180~1184
C. -H. Lin / 2010 / A Li-ion battery charger with smooth control circuit(SCC)and built-in resistance compensator(BRC)for achieving stable and fast charging / IEEE Trans. Circuits Syst. I, Reg. Papers 57(2):506~517
R. Pagano / 2012 / A 0. 18-μm monolithic Li-ion battery charger for wireless devices based on partial current sensing and adaptive reference voltage / IEEE J. Solid-State Circuits 47(6):1355~1368
T. C. Huang / 2014 / Fast charging and high efficiency switching-based charger with continuous built-in resistance detection and automatic energy deliver control for portable electronics / IEEE J. Solid-State Circuits 49(7):1580~1594
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