中原大學電機工程學系
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LED 串並聯技術
指導老師:謝冠群   組長:劉義國   組員:鍾陳毅、邱建璋
本專題實驗 LED 背光驅動電路。藉由BUCK電路來達到降壓的功能,是利用功率切換元件,將輸入的直流電壓切割成高頻信號,而後經由能轉換、整流後,濾除高頻信號,而達到降壓之目的。為調節LED 背光系統之LED 電流與亮度,我們使用了轉導放大均流電路,並聯LED 之均流與亮度平衡都能滿足,且電流漣波也能有效地消除。
This project is to presents a LED backlight driving system, reached by BUCK circuit for a purpose of this project is to make use of the power switch components.In order to achieve the step-down purposes,we let the input DC voltage cut into high-frequency signal by the energy conversion, rectified, filtered high frequency signal. To regulate the LED current and brightness for the LED backlight system.We use transconductance amplifier circuit,The requirements for the current sharing and luminance balance among paralleled LED arrays can be satisfied while current ripple is eliminated significantly.
我們決定將壓電陶瓷晶片和鞋子做結合。
   
 
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