可調式穩定電流的白光驅動模組

Adjustable circuit of constant current for LED driver module

周名峰(Min-Feng Zhou)

指導教授 ： 黃惠良 ； 黃忠民

國立清華大學/電機資訊學院/積體電路設計產業研發碩士專班/碩士(2007年)

https://doi.org/10.6843/NTHU.2007.00117

摘要

中文摘要
近年來，電子產品設計人員正面臨市場的挑戰，不僅面臨降低電子產品成本、縮短產品、設計週期，以及提高電子產品的性能、通用性和高可靠性等一系列問題，而且面臨著採取有效手段和採用新科技成果的有效資源問題。按照已有的電子技術，設計人員大多採用分立元
件和參數型電源設計，開發電子產品時需要經過複雜的參數計算和較長的開發週期。然而市場競爭和新技術為廣大電子技術人員帶來了曙光，許多開發商已成功開發出可靠的模組化電源積體電路。
利用DC/DC模組電源體積小、連接方便、性能可靠。系統設計人員正確合理地選用DC/DC模組電源可以大大地簡化電路設計和除錯，縮短產品設計週期，提高產品性能的高可靠性和系統總體設計水準。隨著微電子技術的迅猛發展、超大型積體電路的不斷湧現，電子產品對
電源的要求更加靈活多樣化，電子設備的小型化和低成本化，使電源向輕、薄、小和高效率方向發展，而電子設備電源的模組化，智慧化已是當今電源技術發展的主流趨勢。
ORCAD 10.5裡面所包含的PSpice是一套用於執行龐大而複雜的積體電路之模擬工作而發展出來的軟體，而它的特點包括整合性高、完整的Probe觀測功能、各種完整的進階模擬功能、模組化和階層化設計、類比行為模型、具有類比和數位模擬的能力、元件庫建立和擴充等多元化的功能，利用此軟體模擬DC/DC電源電路，然後配合建立好的LED模型，從模擬的數據和結果去設計實體化的小尺寸背光模組。
此外，我們也驗證了模擬應用在實際實體電路的可行性。藉由模擬的結果，我們可以預先得知各種元件的參數變化和結果。因此，可以省下大量時間以及提供元件設計一個正確的方向。從本研究中，我們相信以LED代替其他的元件，去做為背光模組的光源，再配合DC/DC
電源電路將可以應用在許多可攜帶式的光電產品。

關鍵字

白光模組

並列摘要

Abstract
Recently, many electronic product designers have a hallenge on the requirement of the market.There are a lot of roblems including low cost of electronic products, shortening products design cycle, and higher performance, generality and high reliability. The technical staff was asked to use
more effective method for solving these problems. According to electronic technology, most designers use distributed components and the parameter type of power supply to design products. They also need complicated parameter to compute and long working period time to research and develop the electronic products. In addition, the competitive market and new technology have brought the hope for the wide electronic technical people; a lot of company has already to build the reliable integrated circuit of power electronic module. It is convenient that utilizing dc/dc converter for obtaining smaller size, connect easily and
reliable function. System designers choose proper dc/dc power module to obtain simple circuits and debug correctly. Therefore, it can reduce design cycle of products, increase the product reliability and enhance total design level. Because micro electronic circuits’ technique develops very quickly,there are a lot of VLSI circuits expanding so fast. The power supply is becoming more and more important in the electronic system. To make it smaller and lighter is the trend of the design direction.
In today's market, engineers must take a design from engineering through manufacturing with shorter design cycles and faster time to market. To be successful, you need a set of powerful,intuitive, and integrated tools are the main stream for development modern electronic product.
OrCAD 10.5 personal productivity tools have a long history of addressing these demands-and more. Designed to boost productivity for smaller design teams and individual printed circuit board (PCB) designers, OrCAD PCB design suites grow with your needs and technology challenges. The
powerful, tightly integrated PCB design suites include design capture, librarian tools, a PCB editor, an auto/interactive router, and optional analog and mixed-signal simulator. The affordable cheaper, high-performance OrCAD product line is easily scalable with the full complement of Cadence® Allegro® PCB solutions. The OrCAD product line is owned by Cadence Design Systems, Inc. and
supported by a worldwide network of Cadence Channel Partners. Based on above description, we also test and verify the simulation results and measurement results. It can reduce a lot of time to check the function work in simulation tool before in PCB work was done. In fact, we can use PSpice to simulate different parameters with the LED driver module,and understand how to design the correct results, such as constant current and output voltage. In this thesis, we believe LED will be substituted for other light sources in backlight, and will be applied in
more optical products with dc/dc converter.

並列關鍵字

LED module

參考文獻

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