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标题: 请问LED灯管需要测试阴极电压,电流吗? [打印本页]

作者: nanpiao    时间: 2015-12-2 13:50
标题: 请问LED灯管需要测试阴极电压,电流吗?
背景描述:一根LED灯管,替换传统荧光灯管,兼容电子镇流器。看到一份测试计划上要求25KHZ下测量DCVoltage,DCcomponent(直流分量)还要测试阴极左右两端的电压,电流,直流电压,直流分量(CathodeMeasurements (left/right)),现在有一台高频基准镇流器问题:直流电压怎么测试?测哪个位置?阴极两端的电压电流怎么测?测哪个位置?直流分量是要计算的,但是实测的直流电压是平均值还是峰值?
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Sample Number
  
Target Lamp
17W/24T8
Circuit Application
Instant Start (IS)
Reference Ballast
60  Hz
25  kHz
Lamp Measurements:
    Voltage, V
    Current, A
    Power, W
    DC Voltage, V dc
    DC component1,  % dc
Cathode Measurements  (left/right):
    Voltages, V
-
-
N/A
    Currents, A
-
-
N/A
    DC Voltages, V dc
-
-
N/A
    DC components1,  % dc
-
-
N/A
1 The calculated DC component of  the voltage waveform (% dc) equals its DC measurement (V dc) divided by its  RMS measurement (V) multiplied by 100.

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作者: nanpiao    时间: 2015-12-2 15:27
求指教谢谢




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