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DIY光敏灯光敏感科技小制作小发明创客科技科学光控电路制作实验

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    ¥6.2
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    ¥5.4
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  • 3 set
  • Exchage Rate 1 CNY ≈ 0.1418 USD
  • Weight 1.0 kg/set
  • Stock num 1221 set
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  • Description
 
 
 
 
 

品    名:光敏灯

货    号:DX 123 

包    装:包装袋

产品尺寸:105*77*35 MM

单个重量:0.12KG

装 箱 数:600

箱    规:60*50*55 CM

光敏灯

    自激多谐振荡器振荡工作后,从IC的3脚输出振荡脉冲信号,该信号经V3-V5放大后,驱动EL发光。调整RPl的阻值,可改变自激多谐振荡器的工作频率,控制输出脉冲占空比的大小,从而调节EL的亮度
在白天或夜晚室内有灯的情况下,光敏电阻器RG受光照射而阻值变小,使Vl饱和导通,V2截止,lC失去工作电源而停止工作,EL不发光。在夜晚,室内的照明灯关闭后,RG的阻值增大,使Vl截止,V2导通,自激多谐振荡器和输出电路正常工作,EL点亮。调节RP2的阻值,可改变光控开关的灵敏度

 

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Update time:20240826163346


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