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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 , o' L! H: w3 U- j
都有对应的测试设备的,三种方法选一个买设备就是
6 l# [. z, J* I F2 b0 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?
# D: S% b; u) s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.
1 ?) n. e) L1 i C. h% W0 C6 E7 jThe anode of the rectifier is connected to the midpoints of appropriate equivalent resistors;
4 w2 r5 H0 x2 i1 y6 [' r. rthe cathode of the rectifier is connected to the short circuited lamp electrode. The direction of
' ?3 B( u3 N/ Z+ V! rthe rectifying effect is chosen so as to give the most unfavourable conditions. If necessary,
0 H% W- m6 h( f. ~the lamp is started using a suitable device. |
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