지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 1 - 10 (10page)
이용수
초록· 키워드
오류제보하기
Current imbalance is the main factor affecting the lifespan of light-emitting diode (LED) lighting systems and is generally solved by active or passive approaches. Given many new lighting applications, independent control is particularly important in achieving different levels of luminance. Existing passive and active approaches have their own limitations in current sharing and independent control, which bring new challenges to the design of LED drivers. In this work, a multichannel resonant converter based on switched-capacitor control (SCC) is proposed for solving this challenge. In the resonant network of the upper and lower half-bridges, SCC is used instead of fixed capacitance. Then, the individual current of the LED array is obtained through regulation of the effective capacitance of the SCC under a fixed switching frequency. In this manner, the complexity of the control unit of the circuit and the precision of the multichannel outputs are further improved. Finally, the superior performance of the proposed LED driver is verified by simulations and a 4-channel experimental prototype with a rated output power of 20 W.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. TOPOLOGY ANALYSIS
Ⅲ. CURRENT SHARING ANALYSIS
Ⅳ. DIMMING CONTROL
Ⅴ. DESIGN CONSIDERATIONS
Ⅵ. PERFORMANCE EVALUATIONS
Ⅶ. CONCLUSIONS
REFERENCES
참고문헌 (26)
참고문헌 신청
X. Wu, C. Hu, J. Zhang, and Z. Qian, “Analysis and design considerations of LLCC resonant multioutput DC/DC LED driver with charge balancing and exchanging of secondary series resonant capacitors,” IEEE Trans. Power Electron., Vol. 30, No. 2, pp.780-789, Feb. 2014.
H. J. Chiu, T. H. Wang and S. C. Mou, “LED backlight driving system for large-scale of LCD panels,” International Conference on Circuits, Signals and Systems, Vol. 23, No. 3, pp. 166-171, Oct. 2007.
C.-Y. Wu, T.-F. Wu, J.-R Tsai, Y.-M. Chen, and C.-C. Chen, “Multistring LED backlight driving system for LCD panels with color sequential display and area control,” IEEE Trans. Ind. Electron., Vol. 55, No.10, pp. 3791-3800, Oct, 2008.
J. Choi, H.-S. Han, and K. Lee, “A current-sourced LED driver compatible with fluorescent lamp ballasts,” IEEE Trans. Power Electron., Vol. 30, No. 8, pp. 4455-4466, Aug. 2015.
Y. Lo, K. Wu, K. Pai, and H. Chiu, “Design and implementation of RGB LED drivers for LCD backlight modules,” IEEE Trans. Ind. Electron., Vol. 56, No.12, pp. 4862-4871, Dec, 2009.
H. J. Chiu, T. H. Wang and S. C. Mou, “LED backlight driving system for large-scale of LCD panels,” International Conference on Circuits, Signals and Systems, Vol. 23, No. 3, pp. 166-171, Oct. 2007.
C.-Y. Wu, T.-F. Wu, J.-R Tsai, Y.-M. Chen, and C.-C. Chen, “Multistring LED backlight driving system for LCD panels with color sequential display and area control,” IEEE Trans. Ind. Electron., Vol. 55, No.10, pp. 3791-3800, Oct, 2008.
J. Choi, H.-S. Han, and K. Lee, “A current-sourced LED driver compatible with fluorescent lamp ballasts,” IEEE Trans. Power Electron., Vol. 30, No. 8, pp. 4455-4466, Aug. 2015.
Y. Lo, K. Wu, K. Pai, and H. Chiu, “Design and implementation of RGB LED drivers for LCD backlight modules,” IEEE Trans. Ind. Electron., Vol. 56, No.12, pp. 4862-4871, Dec, 2009.
함께 읽어보면 좋을 논문
논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!
-
Multi-Output LED Driver Integrated with 3-Switch Converter and Passive Current Balance for Portable Applications
JOURNAL OF POWER ELECTRONICS
2019 .01
-
Cost-Effective Single Switch Multi-Channel LED Driver
JOURNAL OF POWER ELECTRONICS
2015 .03
-
Three-level Resonant Switched Capacitor Boost Converter
ICPE(ISPE)논문집
2019 .05
-
LED Backlight를 위한 다채널 전류평형 단일스위치 LED 구동회로
전력전자학회논문지
2016 .08
-
Medium Voltage Resonant Converter with Balanced Input Capacitor Voltages and Output Diode Currents
JOURNAL OF POWER ELECTRONICS
2015 .03
-
출력 전류 평형을 위한 커플드 인덕터를 적용한 다중 출력 LED 조명용 LLC 공진형 컨버터 분석
전기학회논문지
2021 .02
-
The Analysis of TRIAC Dimming LED Driver by Variable Switched Capacitor for Long Life and High Power-Efficient Applications
ICPE(ISPE)논문집
2015 .06
-
High Step-up Active-Clamp Converter with an Input Current Doubler and a Symmetrical Switched-Capacitor Circuit
JOURNAL OF POWER ELECTRONICS
2015 .05
-
결합인덕터와 직렬 공진을 이용한 비절연 다중 LED 전류 평형 기법
전력전자학회논문지
2021 .08
-
저 전압스트레스 및 다채널 전류 평형을 위한 Floating 전압 스택형 단일스위치 LED 구동회로
전력전자학회논문지
2015 .04
-
A Novel Single-Stage LED Driver with Coupled Inductors and Interleaved PFC
ICPE(ISPE)논문집
2015 .06
-
Zero-Voltage and Zero-Current Switching Interleaved Two-Switch Forward Converter
JOURNAL OF POWER ELECTRONICS
2019 .11
-
A Non-isolated High Step-up DC/DC Converter with Low EMI and Voltage Stress for Renewable Energy Applications
Journal of Electrical Engineering & Technology
2017 .05
-
The Dimmable Single-stage Asymmetrical LLC Resonant LED Driver with Low Voltage Stress Across Switching Devices
Journal of Electrical Engineering & Technology
2015 .09
-
Analysis and Modeling of AC–AC Switched Capacitor Converters
JOURNAL OF POWER ELECTRONICS
2019 .01
-
고효율 및 고전력밀도 3-레벨 LLC 공진형 컨버터
전력전자학회논문지
2018 .06
-
Modeling and Feedback Control of LLC Resonant Converters at High Switching Frequency
JOURNAL OF POWER ELECTRONICS
2016 .05
-
고효율을 갖는 단일 전력변환 직렬 공진형 AC-DC 컨버터
전력전자학회논문지
2016 .06
-
Small Signal Model and Control of a Series Resonant Inverter with an Auxiliary Switched Capacitor Cell Using Describing Function
ICPE(ISPE)논문집
2015 .06
-
LED Driver with TRIAC Dimming Control by Variable Switched Capacitance for Power Regulation
JOURNAL OF POWER ELECTRONICS
2015 .03
이 논문의 저자 정보
최근 본 자료
댓글(0)
0