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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 
( K, h3 w8 S8 O. I! k都有对应的测试设备的,三种方法选一个买设备就是
* e: k* K6 l! C' M/ h' Y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?
- a) `4 R4 t! f% c2 r$ U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.8 }! g! o: z( ]* }! N
The anode of the rectifier is connected to the midpoints of appropriate equivalent resistors;
! N) i- P4 D% X7 _/ V7 P" J( Nthe cathode of the rectifier is connected to the short circuited lamp electrode. The direction of/ K: |9 _1 p: x `' W
the rectifying effect is chosen so as to give the most unfavourable conditions. If necessary,6 z# g8 x: ^. S
the lamp is started using a suitable device. |
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