微型机与应用2017，Vol.36Issue(8)：26-27,30,3.DOI:10.19358/j.issn.1674-7720.2017.08.009
矩阵键盘驱动电路的高阻设计
High impedance design of matrix keyboard driver circuit
郭京 1沈华 1段小虎1
作者信息
- 1. 中航工业西安航空计算技术研究所,陕西 西安 710068
- 折叠
摘要
Abstract
The matrix keyboard is an important man-machine interactive equipment.To complete the man-machine interactive, the user generates excitation signal through the keyboard keys in the actual scenario, and then the driver circuit sends signal to the scanning circuit, the signal arrivals the processor circuit at last.In this process, the driver circuit is responsible for the signal transmission and the design of driver circuit determines whether the entire system can work normally.The high impedance design of driver circuit can avoid matrix keyboard internal short circuit when user presses multiple keys at the same time,so this design makes the driver circuit more reliable.关键词
矩阵键盘/驱动电路/高阻设计Key words
matrix keyboard/driver circuit/high impedance design分类
信息技术与安全科学引用本文复制引用
郭京,沈华,段小虎..矩阵键盘驱动电路的高阻设计[J].微型机与应用,2017,36(8):26-27,30,3.
