基于TTL电路的LED可调彩灯控制器  

LED tunable lights controller based on TTL circuits

作　　者：温汉权 

机构地区：[1]惠州市高级技工学校,广东惠州516001

出　　处：《电子设计工程》2011年第4期167-169,共3页Electronic Design Engineering

摘　　要：为解决目前市场上销售的LED彩灯控制器闪烁频率不可调或不容易调的问题,设计出一种基于TTL电路的LED可调彩灯控制器,电路采用计数器和按钮开关作为手动档位控制,共有10档可调;配上译码器和数码管实现档位自动监测显示;由时间振荡电路和16通道多路复用器HCC4067BF组成可调定时器,可产生10组时钟振荡脉冲送入触发器DM74LS74AN;再由双D触发器74LS74作为分频器控制彩灯闪烁频率;通过实际组装电路调试,电路顺利实现了10个档位手动控制,通过改变LED彩灯闪烁频率,提高了LED彩灯控制性能和闪烁效果。To solve the problems that flicker frequency of LED lights controller is not adjustable or is not easy to adjust at the present market ,this paper designed an adjustable LED lights controller based on TTL circuits.The circuit adopted the counter and the switch button as the manual gear control ,and totally had 10 stalls to adjust. Coupled with the decoder and nixie tube,the circuit achieved automatic monitoring display of stalls. The time oscillation circuit and 16-channels multiplexer HCC4067BF were used to compose to adjustable timer,which could generate 10 groups pulses into trigger DM74LS74AN,and dual D trigger 74LS74 was used as frequency divider to control the flicker frequency of the lights.Through assembling and debugging the circuit, the circuit successfully realized 10 stalls manual control. By changing the flicker frequency of LED lights, it has improved the LED control performance and its flashing lights effect.

关 键 词：频率 可调 LED 彩灯 

分 类 号：TN791[电子电信—电路与系统]