摘要
采用555定时器设计频率为1 Hz的时钟电路,为系统提供时钟信号;采用1片或多片74LS194芯片,实现4路、8路、12路、16路等多路信号控制,实现n路彩灯控制,可以通过电路中电阻、电容的调整,控制霓虹灯闪亮时间的长短。
The 1Hz frequency clock circuit is designed using a 555 timer that provides clock signal. Using one chip or multi-chip 74LS194, the 4-channel, 8-channel and multi-channel signal control circuit are realized. So the n-channel neon light control circuit is realized. The length of the neon shining time can be controled through adjusting the parameters of the resistors and the capacitors in the circuit.
出处
《中国照明电器》
2014年第3期29-30,共2页
China Light & Lighting
