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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 9 m* p2 Y u! r8 t) \" x
都有对应的测试设备的,三种方法选一个买设备就是 ) _/ l, B" m/ D- h- o) n; d$ m
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 D1 ^0 T/ e! l0 j( 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.
8 T X& i0 ~ |. tThe anode of the rectifier is connected to the midpoints of appropriate equivalent resistors;+ W/ _% a D. T2 k, ^
the cathode of the rectifier is connected to the short circuited lamp electrode. The direction of2 E) k1 d: T5 s: |! e( P' }9 m
the rectifying effect is chosen so as to give the most unfavourable conditions. If necessary,* `% B# w( f0 {+ n, z g
the lamp is started using a suitable device. |
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