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| 一种红外屏电路的驱动电流自适应调节方案 | |
| 引用本文： | 沈文星,张东来,龚丽雯,刘兵.一种红外屏电路的驱动电流自适应调节方案[J].红外,2005(6):21-25. |
| 作者姓名： | 沈文星 张东来 龚丽雯 刘兵 |
| 作者单位： | 1. 哈尔滨工业大学深圳研究生院,广东,深圳,518055 2. 深圳市龙岗区自来水有限公司,广东,深圳,518155 3. 深圳市辅泰工业技术有限公司,广东,深圳,518000 |
| 摘 要： | 本文分析了现有红外触摸屏寿命较短的原因，提出了一种驱动电流自适应调节的红外触摸屏电路结构以及自适应调节方法，同时给出了坐标归一化计算方法。本文提出的方法能够根据接收信号的强弱对红外发光管驱动电流进行补偿，采用此项技术设计的红外触摸屏电路具有较强的抗干扰能力，其使用寿命也大大延长。 |
| 关 键 词： | 红外触摸屏 驱动电流 自适应调节 电路结构 信号补偿 |
Adaptive Regulating Means for Driving Current of Infrared Touch Screen |
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| SHEN Wenxing ZHANG Donglai GONG Liwen LIU Bing.Adaptive Regulating Means for Driving Current of Infrared Touch Screen[J].Infrared,2005(6):21-25. | |
| Authors: | SHEN Wenxing ZHANG Donglai GONG Liwen LIU Bing |
| Abstract: | The reason for the short operating life of infrared touch screen is analyzed in this paper. A new circuit and a new adaptive control means which can regulate the drive current adaptively is given out. And also, the normalized calculating means for coordinates is given out. The means presented in this paper can compensate the driving current for the infrared diodes according to the value of received signals. The infrared touch screen designed using this technique has a strong anti-jamming capability, and the operating life of it is extended greatly. |
| Keywords: | infrared touch screen driving current adaptive regulating |
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