xuewenfei
发表于 2010-6-24 20:04
Andy.Yang
发表于 2010-6-24 22:27
Then, try your best to find the hottest point, then put the sensor on it....
igogogo888
发表于 2010-6-24 22:52
呵呵，楼上真搞笑，看到标题，也想了解一下
kamleung
发表于 2010-6-25 14:54
For thyristor (SCR, TRIAC, GTO, MCT and etc), it will get three pins. Only the Cathode and the Anode will carry the major currents. Hence, the corresponding junctions will be the hotest.
Perhaps, you may consider to put your thermal couple
- on the soldering pad of either Cathode and the Anode pin if your thyristor is purely plastic pakage,
or
- on the metal part of your thyristor if it is something like TO220 package.
williams2008
发表于 2010-6-25 15:30
找一个最热，最典型，的地方。
马蹄
发表于 2010-6-25 15:33
一般都是TO220的封装方式，测试本身散热片上的温度~（不是外加的散热片）
ahead
发表于 2010-6-25 16:00
直接布在上面就好了啊 一般温度不会差异很大的吧 如果你的可控硅很大, 那就多布几个点
fengweihua
发表于 2010-6-25 16:46
直接布在电子元件的上表面
xuewenfei
发表于 2010-6-27 07:47
yangzhenling
发表于 2010-6-27 19:47
这样测得的是器件的表面温度，表面温度和内部的结温到底差多少度呢？
