| 控制电缆的分布电容对LED信号灯的影响 |
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| 引用本文： | 马世燕.控制电缆的分布电容对LED信号灯的影响[J].建筑电气,2009,28(1):58-60. |
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| 作者姓名： | 马世燕 |
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| 作者单位： | 北京燕华建筑安装工程有限责任公司电仪分公司,北京市,102502 |
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| 摘 要： | 伴随着LED信号灯的大量使用，电气调试过程中经常会遇到LED信号灯“双灯现象”，即：不该发光的LED信号灯发光了，且亮度不低。本文通过控制电缆的分布电容C进行电路建模，得到了控制电缆的长度和LED信号“双灯现象”的联系。得出了控制电缆的长度l与C之间的关系，并提出了简单可行的解决办法。
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| 关 键 词： | LED信号灯 控制电缆 分布电容 |
Effect of the Distributed Capacitance of Control Cable on LED Signal Lamp |
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| Ma Shiyan.Effect of the Distributed Capacitance of Control Cable on LED Signal Lamp[J].Building Electricity,2009,28(1):58-60. |
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| Authors: | Ma Shiyan |
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| Affiliation: | Electrical Instrument Branch;Beijing Yanhua Construction & Engineering Co.;Ltd.;Beijing 102502;China |
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| Abstract: | With the large quantity application of LED signal lamps,during the adjustment process,"double lamp phenomenon" frequently occurs,i.e.,the LED signal lamp that should not light but light,and the brightness is not low.In this paper,through circuit modeling for the distributed capacitance of the control cable,the relation between the length of the control cable and the " double lamp phenomenon" of the LED signal lamp has been obtained.The relation between the length l of control cable and distributed capacitan... |
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| Keywords: | LED signal lamp Control cable Distributed capacitance |
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