Dimming Techniques with High Luminous Conversion Efficacy and Optimal Current Transition Control for HBLED Drivers

Shun Chung Wang; Hung Yu Pai; Yi Hua Liu

doi:10.1109/ICKII51822.2021.9574770

Dimming Techniques with High Luminous Conversion Efficacy and Optimal Current Transition Control for HBLED Drivers

Shun Chung Wang^*, Hung Yu Pai, Yi Hua Liu

^*此作品的通信作者

研究成果: 圖書/報告稿件的類型 › 會議稿件 › 同行評審

摘要

The current-illuminance characteristic curve of most LEDs is nonlinear. Consequently, under the same lighting power, the PWM dimming cannot obtain the best luminous conversion efficiency that is specified. This paper focuses on the further improvement of LED luminous efficiency and studies current dimming techniques with varied current sensing resistance. A prototype constructed for a 115W LED driver is developed with the devised dimming method realized by a digital signal controller (DSC). Experimental results verify the feasibility and performance. Comparing with conventional PWM dimming, under the same illuminance, the driver average output power is reduced by 17.08 %. The improvement in average illuminance under the same output power is 13.66 %.

原文	英語
主出版物標題	4th IEEE International Conference on Knowledge Innovation and Invention 2021, ICKII 2021
編輯	Teen-Hang Meen
發行者	Institute of Electrical and Electronics Engineers Inc.
頁面	186-189
頁數	4
ISBN（電子）	9781665423076
DOIs	https://doi.org/10.1109/ICKII51822.2021.9574770
出版狀態	已出版 - 23 07 2021
對外發佈	是
事件	4th IEEE International Conference on Knowledge Innovation and Invention, ICKII 2021 - Taichung, 台灣持續時間: 23 07 2021 → 25 07 2021

出版系列

名字	4th IEEE International Conference on Knowledge Innovation and Invention 2021, ICKII 2021

Conference

Conference	4th IEEE International Conference on Knowledge Innovation and Invention, ICKII 2021
國家/地區	台灣
城市	Taichung
期間	23/07/21 → 25/07/21

文獻附註

Publisher Copyright:
© 2021 IEEE.

存取文件

10.1109/ICKII51822.2021.9574770

其它文件與鏈接

Link to publication in Scopus

引用此

Wang, S. C., Pai, H. Y., & Liu, Y. H. (2021). Dimming Techniques with High Luminous Conversion Efficacy and Optimal Current Transition Control for HBLED Drivers. 於 T.-H. Meen (編輯), 4th IEEE International Conference on Knowledge Innovation and Invention 2021, ICKII 2021 (頁 186-189). (4th IEEE International Conference on Knowledge Innovation and Invention 2021, ICKII 2021). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICKII51822.2021.9574770

Wang, Shun Chung ; Pai, Hung Yu ; Liu, Yi Hua. / Dimming Techniques with High Luminous Conversion Efficacy and Optimal Current Transition Control for HBLED Drivers. 4th IEEE International Conference on Knowledge Innovation and Invention 2021, ICKII 2021. 編輯 / Teen-Hang Meen. Institute of Electrical and Electronics Engineers Inc., 2021. 頁 186-189 (4th IEEE International Conference on Knowledge Innovation and Invention 2021, ICKII 2021).

@inproceedings{07079a973e8547b191f2f80209ba16e6,

title = "Dimming Techniques with High Luminous Conversion Efficacy and Optimal Current Transition Control for HBLED Drivers",

abstract = "The current-illuminance characteristic curve of most LEDs is nonlinear. Consequently, under the same lighting power, the PWM dimming cannot obtain the best luminous conversion efficiency that is specified. This paper focuses on the further improvement of LED luminous efficiency and studies current dimming techniques with varied current sensing resistance. A prototype constructed for a 115W LED driver is developed with the devised dimming method realized by a digital signal controller (DSC). Experimental results verify the feasibility and performance. Comparing with conventional PWM dimming, under the same illuminance, the driver average output power is reduced by 17.08 %. The improvement in average illuminance under the same output power is 13.66 %.",

keywords = "dimming method, high brightness light-emitting diode (HBLED), luminous conversion efficacy",

author = "Wang, {Shun Chung} and Pai, {Hung Yu} and Liu, {Yi Hua}",

note = "Publisher Copyright: {\textcopyright} 2021 IEEE.; 4th IEEE International Conference on Knowledge Innovation and Invention, ICKII 2021 ; Conference date: 23-07-2021 Through 25-07-2021",

year = "2021",

month = jul,

day = "23",

doi = "10.1109/ICKII51822.2021.9574770",

language = "英语",

series = "4th IEEE International Conference on Knowledge Innovation and Invention 2021, ICKII 2021",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "186--189",

editor = "Teen-Hang Meen",

booktitle = "4th IEEE International Conference on Knowledge Innovation and Invention 2021, ICKII 2021",

address = "美国",

}

Wang, SC, Pai, HY & Liu, YH 2021, Dimming Techniques with High Luminous Conversion Efficacy and Optimal Current Transition Control for HBLED Drivers. 於 T-H Meen (編輯), 4th IEEE International Conference on Knowledge Innovation and Invention 2021, ICKII 2021. 4th IEEE International Conference on Knowledge Innovation and Invention 2021, ICKII 2021, Institute of Electrical and Electronics Engineers Inc., 頁 186-189, 4th IEEE International Conference on Knowledge Innovation and Invention, ICKII 2021, Taichung, 台灣, 23/07/21. https://doi.org/10.1109/ICKII51822.2021.9574770

Dimming Techniques with High Luminous Conversion Efficacy and Optimal Current Transition Control for HBLED Drivers. / Wang, Shun Chung; Pai, Hung Yu; Liu, Yi Hua.
4th IEEE International Conference on Knowledge Innovation and Invention 2021, ICKII 2021. 編輯 / Teen-Hang Meen. Institute of Electrical and Electronics Engineers Inc., 2021. p. 186-189 (4th IEEE International Conference on Knowledge Innovation and Invention 2021, ICKII 2021).

研究成果: 圖書/報告稿件的類型 › 會議稿件 › 同行評審

TY - GEN

T1 - Dimming Techniques with High Luminous Conversion Efficacy and Optimal Current Transition Control for HBLED Drivers

AU - Wang, Shun Chung

AU - Pai, Hung Yu

AU - Liu, Yi Hua

PY - 2021/7/23

Y1 - 2021/7/23

N2 - The current-illuminance characteristic curve of most LEDs is nonlinear. Consequently, under the same lighting power, the PWM dimming cannot obtain the best luminous conversion efficiency that is specified. This paper focuses on the further improvement of LED luminous efficiency and studies current dimming techniques with varied current sensing resistance. A prototype constructed for a 115W LED driver is developed with the devised dimming method realized by a digital signal controller (DSC). Experimental results verify the feasibility and performance. Comparing with conventional PWM dimming, under the same illuminance, the driver average output power is reduced by 17.08 %. The improvement in average illuminance under the same output power is 13.66 %.

AB - The current-illuminance characteristic curve of most LEDs is nonlinear. Consequently, under the same lighting power, the PWM dimming cannot obtain the best luminous conversion efficiency that is specified. This paper focuses on the further improvement of LED luminous efficiency and studies current dimming techniques with varied current sensing resistance. A prototype constructed for a 115W LED driver is developed with the devised dimming method realized by a digital signal controller (DSC). Experimental results verify the feasibility and performance. Comparing with conventional PWM dimming, under the same illuminance, the driver average output power is reduced by 17.08 %. The improvement in average illuminance under the same output power is 13.66 %.

KW - dimming method

KW - high brightness light-emitting diode (HBLED)

KW - luminous conversion efficacy

UR - http://www.scopus.com/inward/record.url?scp=85118984350&partnerID=8YFLogxK

U2 - 10.1109/ICKII51822.2021.9574770

DO - 10.1109/ICKII51822.2021.9574770

M3 - 会议稿件

AN - SCOPUS:85118984350

T3 - 4th IEEE International Conference on Knowledge Innovation and Invention 2021, ICKII 2021

SP - 186

EP - 189

BT - 4th IEEE International Conference on Knowledge Innovation and Invention 2021, ICKII 2021

A2 - Meen, Teen-Hang

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 4th IEEE International Conference on Knowledge Innovation and Invention, ICKII 2021

Y2 - 23 July 2021 through 25 July 2021

ER -

Wang SC, Pai HY, Liu YH. Dimming Techniques with High Luminous Conversion Efficacy and Optimal Current Transition Control for HBLED Drivers. 於 Meen TH, 編輯, 4th IEEE International Conference on Knowledge Innovation and Invention 2021, ICKII 2021. Institute of Electrical and Electronics Engineers Inc. 2021. p. 186-189. (4th IEEE International Conference on Knowledge Innovation and Invention 2021, ICKII 2021). doi: 10.1109/ICKII51822.2021.9574770

Dimming Techniques with High Luminous Conversion Efficacy and Optimal Current Transition Control for HBLED Drivers

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