지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.11
- 수록면
- 886 - 894 (9page)
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초록· 키워드
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This paper presents a secondary-side, dual-mode feedback LLC resonant controller IC with dynamic PWM dimming for LED backlight units. In order to reduce the cost, master and slave outputs can be generated simultaneously with a single LLC resonant core based on dual-mode feedback topologies. Pulse Frequency Modulation (PFM) and Pulse Width Modulation (PWM) schemes are used for the master stage and slave stage, respectively. In order to guarantee the correct dual feedback operation, Phased-Locked Loop (PLL)-based automatic duty control circuit is proposed in this paper. The chip is fabricated using 0.35 μm Bipolar-CMOS-DMOS (BCD) technology, and the die size is 2.5 mm × 2.5 mm. The frequency of the gate driver (GDA/GDB) in the clock generator ranges from 50 to 425 kHz. The current consumption of the LLC resonant controller IC is 40 mA for a 100 kHz operation frequency using a 15 V supply. The duty ratio of the slave stage can be controlled from 40% to 60% independent of the frequency of the master stage.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. PROPOSED SECONDARY SIDE DUAL-MODE FEEDBACK LLC RESONANT CONTROLLERIC ARCHITECTURE
Ⅲ. BUILDING BLOCKS OF 2ND-SIDE DUAL-MODEFEEDBACK LLC RESONANT CONTROLLER IC
Ⅳ. MEASUREMENT RESULTS
Ⅴ. CONCLUSIONS
ACKNOWLEDGMENT
REFERENCES
참고문헌 (25)
참고문헌 신청
1. [학술대회논문] - L. Y. Pan / 2007 / The future development of global LCD TV industry / in Proceeding of PICMET : 1818 ~ 1821
2. [학술대회논문] - F. Xiaoyun / 2009 / Research and analysis of the design development and perspective technology for LED lighting products / in Proc. IEEE CAID&CD : 1330 ~ 1334
3. [학술지(정기간행물)] - 홍성수 / 2010 / A New Cost-Effective Current-Balancing Multi-Channel LED Driver for a Large Screen LCD Backlight Units / 전력전자학회 영문논문지 10 (4) : 351 ~ 356
4. [학술대회논문] - B. Yang / 2002 / LLC resonant converter for front end DC/DC conversion / in Proc. IEEE APEC, Dallas, TX 2 : 1108 ~ 1112
5. [학술대회논문] - B. Lu / 2006 / Optimal design methodology for llc resonant converter / in Proc. IEEE APEC, Blacksburg : 533 ~ 538
2. [학술대회논문] - F. Xiaoyun / 2009 / Research and analysis of the design development and perspective technology for LED lighting products / in Proc. IEEE CAID&CD : 1330 ~ 1334
3. [학술지(정기간행물)] - 홍성수 / 2010 / A New Cost-Effective Current-Balancing Multi-Channel LED Driver for a Large Screen LCD Backlight Units / 전력전자학회 영문논문지 10 (4) : 351 ~ 356
4. [학술대회논문] - B. Yang / 2002 / LLC resonant converter for front end DC/DC conversion / in Proc. IEEE APEC, Dallas, TX 2 : 1108 ~ 1112
5. [학술대회논문] - B. Lu / 2006 / Optimal design methodology for llc resonant converter / in Proc. IEEE APEC, Blacksburg : 533 ~ 538
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