xiaoning 发表于 2017-4-26 15:53

请教IEC61347-2-3《荧光灯电子镇流器特殊要求》17.2不对称脉冲电压测试

大家好,请教一下IEC61347-2-3《荧光灯电子镇流器特殊要求》第17.2 不对称脉冲试验测试,谢谢指教.
问题1:J6,J7 端口的电压是看示波器上的有效值电压还是峰值电压?
问题2:J7,J8 端口的电流能否用万用表(两只表笔插入测试盒中的J7,J8端口)来测量?
问题3:Pmax 是否用上述的电压乘以电流计算出Pmax?

Nezof 发表于 2017-4-26 17:11

都有对应的测试设备的,三种方法选一个买设备就是

xiaoning 发表于 2017-4-27 11:45

Nezof 发表于 2017-4-26 17:11 static/image/common/back.gif
都有对应的测试设备的,三种方法选一个买设备就是

有一个测试盒,但是不知道J6,J7 端口的电压是看示波器上的有效值电压还是峰值电压?
另外,向高工请教一下16.1故障测试中的整流效应,标准说按照图1 的测试电路,可图一的电路好像是测不对称脉冲电压的图。When testing electronic ballasts for the rectifying effect, the circuit shown in Figure 1 is used.
The anode of the rectifier is connected to the midpoints of appropriate equivalent resistors;
the cathode of the rectifier is connected to the short circuited lamp electrode. The direction of
the rectifying effect is chosen so as to give the most unfavourable conditions. If necessary,
the lamp is started using a suitable device.

xiaoning 发表于 2017-4-27 11:49

Nezof 发表于 2017-4-26 17:11 static/image/common/back.gif
都有对应的测试设备的,三种方法选一个买设备就是

您好,谢谢您的指教,还有一个问题:16.1整流效应说要把整流器的阳极连接到等效电阻的中点,阴极连接到短路的灯的电极,灯的每端pin之间本来就是通的,还用短路吗?谢谢指教。
When testing electronic ballasts for the rectifying effect, the circuit shown in Figure 1 is used.
The anode of the rectifier is connected to the midpoints of appropriate equivalent resistors;
the cathode of the rectifier is connected to the short circuited lamp electrode. The direction of
the rectifying effect is chosen so as to give the most unfavourable conditions. If necessary,
the lamp is started using a suitable device.

Nezof 发表于 2017-4-27 13:11

灯的两pin之间是有电阻的
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