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國立中山大學 National Sun Yat-sen University

【獲證專利公告】恭賀!物理系張鼎張教授及團隊之研究成果「感光電路及其控制方法」獲得美國發明專利!

 

發明人

張鼎張教授

系所

物理系

專利名稱

感光電路及其控制方法

證書號

US 9,647,020 B2

公告日期

106年5月9日

專利摘要

A light sensing circuit for solving the problem of low reliability in illumination detection includes a photo transistor having a gate, a drain and a source; a first transistor electrically connecting between the gate and source of the photo transistor; a first capacitor electrically connecting between the gate and the drain of the photo transistor; a second transistor electrically connecting with the drain of the photo transistor, the first capacitor, and a data signal; a second capacitor electrically connecting between the source of the photo transistor and a ground contact; a third transistor electrically connecting with the photo transistor, the first transistor, and the second capacitor; and a switch adapted to alternatively connect the third transistor with a buffer or a zero signal. A control method of the above light sensing circuit is also disclosed. Therefore, the above identified problem can be surely solved.

 

 

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