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
- 2012.7
- 수록면
- 519 - 527 (9page)
이용수
초록· 키워드
오류제보하기
A high step-down multiple-output LED driver is proposed in this paper. Firstly, the derivation of the driver with dual-output is presented and its operation principle and steady state performance are analyzed in detail. Secondly, a high step-down N-channel LED driver is proposed and its current auto-balance characteristic and step-down ratio are analyzed. Finally, an experimental prototype is built and the experimental results are given. The theoretical analysis and experimental results show that the proposed driver has the following virtues: First, if load balancing is achieved, the voltage gain is 1/N that of a Buck driver, where N is the number of channels. Second, each output automatically has an equal output current, without requiring more current close-loop control circuits than a Buck driver. Last, the voltage stresses of the switches and diodes are lower than those of a Buck driver, meaning that lower voltage switches and diodes can be used, and a higher efficiency can be expected.
목차
Abstract
I. INTRODUCTION
II. TOPOLOGY DERIVATION
III. OPERATING PRINCIPLE
IV. STEADY PERFORMANCE ANALYSIS
V. HIGH STEP-DOWN N-CHANNEL DRIVER
VI. EXPERIMENTAL RESULTS
VII. CONCLUSION
ACKNOWLEDGMENT
REFERENCES
참고문헌 (27)
참고문헌 신청
1. [단행본] - E. F. Schubert / 2006 / Light-emitting Diodes, 2nd ed / Cambridge Univ. Press
2. [학술지(정기간행물)] - M. R. Krames / 2007 / Status and future of high-power light emitting diodes for solid-state lighting / J. Display Technol 3 (2) : 160 ~ 175
3. [학술대회논문] - Y. Wang / 2004 / On the present status, developing opportunities and suggestions about China’s semiconductor lightings industry / International Forum on LED & Semiconductor Lighting : 130 ~ 136
4. [학술지(정기간행물)] - D. A. Steigerwald / 2002 / Illumination with solid state lighting technology / IEEE J. Sel. Topics Quantum Electron 8 (2) : 310 ~ 320
5. [학술대회논문] - H. Van Der Broeck / 2007 / Power driver topologies and control schemes for LEDs / in Proc. APEC : 1319 ~ 1325
2. [학술지(정기간행물)] - M. R. Krames / 2007 / Status and future of high-power light emitting diodes for solid-state lighting / J. Display Technol 3 (2) : 160 ~ 175
3. [학술대회논문] - Y. Wang / 2004 / On the present status, developing opportunities and suggestions about China’s semiconductor lightings industry / International Forum on LED & Semiconductor Lighting : 130 ~ 136
4. [학술지(정기간행물)] - D. A. Steigerwald / 2002 / Illumination with solid state lighting technology / IEEE J. Sel. Topics Quantum Electron 8 (2) : 310 ~ 320
5. [학술대회논문] - H. Van Der Broeck / 2007 / Power driver topologies and control schemes for LEDs / in Proc. APEC : 1319 ~ 1325
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