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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 
5 @+ @. ^8 F: p( ^2 G: E/ t都有对应的测试设备的,三种方法选一个买设备就是
# p: h: ~8 _4 c0 n% n* a h' [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?
8 q& u! Y5 e8 V8 b% a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.
0 I/ g# K9 U' _ G6 x9 w fThe anode of the rectifier is connected to the midpoints of appropriate equivalent resistors;: X# w+ d) |. N J
the cathode of the rectifier is connected to the short circuited lamp electrode. The direction of1 B, a# }: P% o5 U4 G1 a. }3 e
the rectifying effect is chosen so as to give the most unfavourable conditions. If necessary,
4 o% ?4 K: g# ?) R d/ q8 J8 `+ J% mthe lamp is started using a suitable device. |
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