請用此 Handle URI 來引用此文件：
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/40936完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 黃秉鈞(Bin-Juine Huang) | |
| dc.contributor.author | I-Ting Huang | en |
| dc.contributor.author | 黃一庭 | zh_TW |
| dc.date.accessioned | 2021-06-14T17:07:37Z | - |
| dc.date.available | 2013-08-05 | |
| dc.date.copyright | 2008-08-05 | |
| dc.date.issued | 2008 | |
| dc.date.submitted | 2008-07-29 | |
| dc.identifier.citation | [1] The promise of solid state lighting for general illumination, U.S. Department of Energy & Optoelectronics Industry Development Association, 2002
[2] E. Fred Schubert, Light-Emitting Diode, UK: Cambridge, 2003 [3] datasheet EHP-A08B UT01-P01, “High Power LED-1W”, Everlight Electronic Co, website：http://www.everlight.com/ [4] David Eastley, “Evaluating High-Power LEDs”, Proceedings of Strategies unlimited, 2006 [5] Kaveh Azar , “Thermal Measurement in Electronic Cooling” ,CRC Press LLC, 1997 [6] Y. Xi, E. F. Schubert, “Junction–temperature measurement in GaN ultraviolet light-emitting diodes using diode forward voltage method”, J. Appl. Phys. 85, 2163 ,2004 [7] E. Fred Schubert, Light-Emitting Diode, UK: Cambridge, 2003 [8] John W. Sofia, “Electrical temperature measurement using semiconductors” Electronics-Cooling, http://www.electronics-cooling.com/Resources/EC_Articles/JAN97/jan97_03.htm [9] 黃秉鈞, “系統識別”, 2006 [10] H. Rake, “Step Response and Frequency Response Methods”, Automatica, v 16, n 5, Sep., 1980, p 519-526. [11] Datasheet DS46, “power light source LUXEON® III Star”, Philips Lumileds Lighting Company, website:“http:// www.lumileds.com/” [12] Ian E. Ashdown, “Neural networks for LED color control”, pp. 215-226, Proc. SPIE 5187, Jan., 2004 [13] 黃秉鈞, “自動控制”, 2001 [14] PIC 16F877X Datasheet, Microchip, 2001 [15] Franklin、G.F.、J.D.Powell、A.E Naeini, “Feedback-Control of Dynamic System”, Addision Wesley, 1994 [16] Datasheet DS45, “power light source LUXEON® III Emitter ” ,Lumileds Lighting,2005 [17] Matlab Help Data [18] Contemporary Communication System Using Matlab By John Proakis, Masoud Salehi [19] 李顯宏, “MATLAB 7.X程式開發與應用技巧” ,文魁資訊股份有限公司,2005 [20] 洪維恩, “MATLAB 7程式設計” ,旗標出版股份有限公司, 2005 [21] 李宜達, “控制系統設計與模擬” ,全華科技圖書股份有限公司, 2006 [22] 俞克維, “控制系統分析與設計” ,新文京出版有限公司, 2004 [23] Matteo Meneghini, Lorenzo Trevisanello, Simona Podda, Simone Buso, Giorgio Spiazzi, Gaudenzio Meneghesso, Enrico Zanoni, “Stability and performance evaluation of High Brightness Light Emitting Diodes under DC and pulsed bias conditions”, Proc. SPIE Vol.6337, 2006 | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/40936 | - |
| dc.description.abstract | 本研究目的在探討LED在交流、PWM驅動下，LED晶蕊溫度瞬間的變化是否超過其限制條件。因晶蕊溫度無法直接量測，因此欲取得精確的晶蕊溫度需藉由系統識別來建立LED燈具的模型，本研究採用脈衝驅動法來測量晶蕊溫度，測得LED燈具之接面溫度動態響應，並以Rake’s法識別LED動態模型。
在本文中分別對18W與100W LED燈具作系統識別。經由理論推導與動態實驗皆可證明LED接面溫度響應為四階系統，但簡化成分子分母同為一階系統亦可得到良好的近似。使用交流全波整流、交流半波整流、PWM、三角波等四種波形驅動LED燈具，分別模擬出晶蕊溫度瞬間的變化量。本研究將晶蕊溫度的極限值設定為80℃，由模擬結果可看出PWM驅動方式能承受較大的過電流，其次為三角波。而全波整流亦可承受 兩倍以上的變化而不會造成其晶蕊溫度過高的情況發生，半波整流則為模擬波形中最不良的驅動方式。 | zh_TW |
| dc.description.abstract | The purpose of this study to investigate the LED in the AC-driven, PWM driven, Triple driven, LED junction temperature changes in an instant whether over its restrictions. The method used to measure the pulse-driven junction temperature, and to identify LED dynamic model by Rake's law.
Both theoretical and experimental analyses have shown that the thermal system dynamics model of the LED fixture is 4th-order with 3 zeros and can be further reduced to a first-order biproper system. The use of AC full-wave rectifier, AC half-wave rectifier, PWM, such as triangular-wave-driven were simulated LED junction temperature changes in an instant. This study will be junction temperature limit is set to 80℃. The results can be seen by the PWM-driven approach can withstand greater over-current, followed by the triangular wave. Full-wave rectifier can withstand more than twice the rms-current changes will not lead to its junction temperature is too high to happen, half-wave rectifier analog waveform is the most bad-driven approach. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-14T17:07:37Z (GMT). No. of bitstreams: 1 ntu-97-R94522827-1.pdf: 2697659 bytes, checksum: 2ef910f7ef68018894f2b2dd313f186f (MD5) Previous issue date: 2008 | en |
| dc.description.tableofcontents | 致謝 I
中文摘要 II 英文摘要 III 目錄 IV 圖目錄 VII 表目錄 XIV 符號說明 XV 第一章 緒論 1 1.1 研究動機 1 1.2 研究內容 4 第二章 18W LED燈具模型系統識別 5 2.1 18W LED燈具硬體設計與製作 5 2.2 LED燈具動態模型理論推導 6 2.2.1 LED燈具架構 6 2.2.2 系統模型建構 13 2.2.3 理論動態模型分析 16 2.3 動態模型識別 20 2.3.1 系統識別條件設定與方法 20 2.3.2 接面溫度量測實驗設計 23 2.3.2.1 TSP校正測試 23 2.3.2.2 加熱測試 26 2.4 系統識別結果 29 2.4.1 四階系統識別結果 29 2.4.2 一階系統識別結果 49 第三章 100W LED燈具模型系統識別 69 3.1 100 W LED燈具硬體設計與製作 69 3.2 接面溫度量測實驗 70 3.2.1 TSP校正測試 70 3.2.2 加熱測試 72 3.3 系統識別結果 74 第四章LED晶蕊溫度之預測 87 4.1 模擬程式設計 87 4.2交流全波整流驅動 90 4.2.1 18W LED 燈具之交流全波整流驅動 90 4.2.2 100W LED 燈具之交流全波整流驅動 94 4.3 交流半波整流驅動 96 4.3.1 18W LED燈具之交流半波驅動 96 4.3.2 100W LED燈具之半波整流驅動 100 4.4 PWM驅動 103 4.5 三角波驅動 118 4.5.1 18W LED燈具之三角波驅動 118 4.5.2 100W LED燈具之三角波驅動 123 4.6 模擬結果 127 第五章 討論與結論 131 5.1 討論 131 5.2 結論 132 5.3 未來展望 134 參考文獻 135 | |
| dc.language.iso | zh-TW | |
| dc.subject | 發光二極體晶蕊溫度 | zh_TW |
| dc.subject | 交流驅動 | zh_TW |
| dc.subject | PWM驅動 | zh_TW |
| dc.subject | AC-Driven | en |
| dc.subject | LED junction temperature | en |
| dc.subject | PWM-Driven | en |
| dc.title | LED交流驅動之研究 | zh_TW |
| dc.title | Study of AC-Driven LED | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 96-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 陳明新(Min-Shin Chen),林沛群(Pei-Chun Lin) | |
| dc.subject.keyword | 發光二極體晶蕊溫度,交流驅動,PWM驅動, | zh_TW |
| dc.subject.keyword | LED junction temperature,AC-Driven,PWM-Driven, | en |
| dc.relation.page | 136 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2008-07-29 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
| 顯示於系所單位： | 機械工程學系 | |
文件中的檔案：
| 檔案 | 大小 | 格式 | |
|---|---|---|---|
| ntu-97-1.pdf 未授權公開取用 | 2.63 MB | Adobe PDF |
系統中的文件，除了特別指名其著作權條款之外，均受到著作權保護，並且保留所有的權利。