如何用NE555实现的红外遥控图装置最好带发射图接收图 以及整合图。

2025-02-26 11:28:27
推荐回答(2个)
回答1:

红外遥控开关  

  本例介绍一款8通道红夕遥控开关电路,它具有电路新颖、性能稳定等特点,可用于控制照明灯等家用电器。

  电路工作原理

  该红外遥控开关电路由红外遥控发射器电路和红外遥控接收控制电路组成。

  红外遥控发射器电路由时基集成电路lCl、控制按钮Sl-S8、电源开关S9、电阻器Rl、R2、电位器RPI-RP8、红外发光二极管VLl、电容器Cl、C2和电池GB组成,如图3-11所示。  

                                   

  红外遥控接收控制电路由运算放大器集成电路IC2、音频译码集成电路lC3、电子开关集成电路IC4、1C5、八进制计数/译码器集成电路IC6、四与非门集成电路IC7、电阻器R3-R8、电容器C3-C9、电位器RP9-RPl6、红外光敏二极管VD、发光二极管VL2-VL9、晶刊管VTl-VT8组成,如图3-12所示。

                                                

  其中,VD和ICl、R3-R5、C3组成红外接收放大电路;IC2和C4-C6、R6组成锁相环译码电路;IC4-1C6和RP9-RPl6组成自动巡检控制电路;IC7(Dl-D4)内部的与非门Dl、D2和电阻器R7、R8、C7组成lOHz低频振荡器;VL2-VL9和VTl-VT8组成控制执行电路;RLl-RL8为负载。

  按动红外遥控发射器上S1-S8中某按钮时,lC1的3脚输出约500kHz的振荡脉冲,驱动VLl发出调制红外光。VD接收到VLl发出的调制红外光信号并将其转换为电信号,该信号经IC2放大、IC3译码后,从IC3的8脚输出。当红外遥控发射器发射的编码信号与IC3译码后的信号频率相同时,IC3的8脚由高电平变为低电平。

  低频振荡器输出的lOHz低频信号经D3驱动和D4选通控制后加至lC6的13脚,作为IC6的计数脉冲。当IC3的8脚为高电平时,IC7的11脚 (D4的输出端)有计数脉冲信号输出;当lC3的8脚变为低电平时,计数脉冲信号消失,IC6停止计数,其某输出端 (与遥控发射器编码路数相对应)将输出高电平,使该路发光二极管点亮,晶闸管受触发而导通,该路负载通电工作。同时,IC3的8脚维持输出低电平。

  例如,按动Sl时,IC6的YO端将输出高电平,使IC4内部的电子开关S02接通,同时VL2点亮,VTl受触发导通,第一路负载RLl通电工作。

  调整RPl-RP8和RP9-RPl6的阻值,使8路遥控编码和译码的频率相对应。

  元器件选择

  Rl-R8选用1/4W金属膜电阻器或碳膜电阻器。

  RPl-RPl6均选用小型膜式可变电阻器。

  Cl-C3、C6和C9均选用独石电容器;C4、C5、C7和C8均选用耐压值为16V的铝电解电容器。

  VLl选用SE303A型红外发光二极管;VL2-VL9均选用φ3mm的高亮度发光二极管。

  VD选用PH302型红外光敏二极管。

  ICl选用NE555或5G555型时基集成电路;IC2选用μA741或LM741型运算放大器集成电路;IC3选用LM567型音频译码器集成电路;IC4和1C5均选用CD4066型电子开关集成电路;IC6选用CD4022型八进制计数/脉冲分配器集成电路;IC7选用CD401l型四与非门集成电路。

  VTl-VT8均选用3-1OA(应根据负载功率而定)、600V的双向晶闸管。

  S1-S8均选用微型动合 (常开)按钮;S9选用微型自锁按钮开关。

回答2:

是要做红外传输的东西是吧 我正好也做这方面 用555实现 我可以给你最简单的电路图 发邮件到luoquan_007@163.com 我给伱
3天以内

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