摘要
本文阐述了555时基电路用于脉冲调制(PM)的几种工作模式及其相应的工作特点。导出其线性工作的条件,并给出用作红外线调制的实例。
In this article several operation modes of the 555 timer applied to the pulse Modulation(PM) and their corresponding operation characteristics are expounded. The conditions for their linear operation are derived and an example of the infrarcd rays modulation is given.
关键词
时基电路
脉冲调制
红外线通信
pulse modulation
timer
infrared communication
