低噪音模組化冷光板換流器之研製

Design and Implementation of Modular Inverter with Low Noise for Electro Luminescent Panel

林宗翰(Tsung-Han Lin)

指導教授 ： 鄭健隆

國立虎尾科技大學/電機資訊學院/電機工程研究所/碩士(2010年)

摘要

本論文旨在研發具有可選定諧波消除達成低噪音且適用不同大小面積之模組化冷光板換流驅動器。
本驅動器使用可選定諧波消除之脈波寬度調變(Selective Harmonic Elimination Pulse Width Modulation, SHE-PWM)來控制單相全橋換流器系統，針對全橋換流器主要音頻諧波的產生進行事先規劃，進而抑制消除噪音聲源，本文中可選定諧波消除之脈波寬度調變係經由傅立葉級數分析求得特定之開關切換角度，作為單相全橋換流器之功率晶體開關觸發訊號，換流器輸出波形可消除3次、5次、7次、9次、11次、13次、15次、17次及19次諧波，使用Pspice模擬軟體評估諧波消除之性能，並提高或降低工作頻率、回授與冷光板負載特性相互配合使驅動器適用性提高，利用可程式單晶片(Programmable System on Chip, PSoC) 作為核心控制器，提供SHE-PWM開關觸發訊號、處理回授訊號、多段跳觸發訊號及脈波寬度調變(Pulse Width Modulation, PWM)漸亮暗調光控制訊號等。冷光板跳動順序規劃程式可清楚的讓使用者設計冷光板的跳動順序而不需重新撰寫複雜的程式
經由模擬與實驗量測相互驗證本文提出方法之有效性與可行性，最後與市售冷光板驅動器做比較，證明本驅動器確實能夠達成低噪音性能與更高的適用性。

關鍵字

冷光板 ； 可選定諧波規劃消除 ； 低噪音 ； 模組化

並列摘要

The main study of this thesis is to understand and develope a programmable pulse-width waveform for eliminating the harmonic noise and optimizing the driver unit in order to improve the usability of Electro Luminescent (EL) Panel.
The selective harmonic elimination pulse-width modulation(SHE-PWM) is used to control the full-bridge inverter. The main noise generation of the full-bridge inverter are analyzed in order to eliminate the noise from the noise source. Based on Fourier series analysis, the switching angles of PWM signal can be gernerated to eliminate the selected harmonics, such us 3rd, 5th, 7th, 9th, 11th, 13th, 15th, 17th and 19th harmonics. The Pspice simulation software is used to evaluate the performance of harmonic elimination, to adjust the operating frequencies, to match the system impendence and to drive the different size of panel. The Programmable System on Chip (PSoC) is adopted as the core control unit, to gernerate SHE-PWM signal for the full-bridge inverter, to detective feedback signal, to send an initial signal of the multi-jump module and to adjust the brightness of the EL light. The Human/Machine interface can design the EL panel light-emitting sequence on the computer.
The simulations and experiments are provided to verify that the proposed approach has low noise and higher flexibility.

並列關鍵字

Electro Luminescent Panel ； Selective Harmonic Elimination ； Low Noise ； Modular

參考文獻

[3] C. N. King, “Electroluminescent Displays,” J. Vac. Sci. Technol. American, pp. 1729-1735, 1996.

[4] K. Kawate, K.I. Ohkura, M. Yamazai, M. Kuroda, and O. Nabeta, “Organic Electroluminescent Devices with Thiophene Derivatives,” SPIE, Vol. 2174, pp. 200-211, 1994.

[7] 任雲懷，“濺鍍Y2SiO5薄膜電激發光元件結構材料性質之研究”，國立成功大學材料科學及工程研究所碩士論文，2003。

[12] 陳政君，“泛用型冷光板模組化驅動控制器之研發”，國立虎尾科技大學電機工程系研究所碩士論文，2009。

[13] Chien-Lung Cheng, Tsung-Han Lin, Kuang-Yao Fan, and Chieh-Min Chan, “An Integrated with Multi-hop and Gradually Light of Driver for Electro Luminescent Panel,” Taiwan Power Electronics Conference & Exhibition, Conference Proceedings, pp. 934-939, 2009.