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发表于 2017-4-27 11:45
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Nezof 发表于 2017-4-26 17:11 
, z2 X8 X0 V4 Y+ q' t: o; v都有对应的测试设备的,三种方法选一个买设备就是 ) h/ C- u2 n, e6 B+ G4 ~$ A9 ]9 o
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?
1 p8 J9 D- U% q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.
& {; B. j0 }4 n+ q9 ~The anode of the rectifier is connected to the midpoints of appropriate equivalent resistors;
* m: y' {! n$ Dthe cathode of the rectifier is connected to the short circuited lamp electrode. The direction of, C+ F) K" c# {: P* ^( q5 L
the rectifying effect is chosen so as to give the most unfavourable conditions. If necessary,
1 r! F8 |2 `- G. `the lamp is started using a suitable device. |
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