摘要
本文阐述了用TTL单片集成电路构成多路自动转换电路的方法及转换电路的工作原理和实际意义。
This paper discusses the constitution of multiple automatic change-over circuits through TTL-single integrated circuit, it also introduces the operation principle and the significance of the change-over circuit.
出处
《石家庄经济学院学报》
1997年第3期310-313,共4页
Journal of Shijiazhuang University of Economics