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IEC 60335-1/A2:2006中19.11.2 g)中的电子功率开关问题

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1#
发表于 2011-12-1 12:54:34 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
IEC 60335-1/A2:2006中19.11.2 g)中的电子功率开关具体指哪种器件或电路,能否给个实例?谁又按标准做过这条?

覆标准章节:

19.11.2 In the first paragraph of the test specification, add the following after Note 2:
g) failure of an electronic power switching device in a partial turn-on mode with loss of
gate (base) control. During this test, winding temperatures shall not exceed the values
given in 19.7.
NOTE 3 This mode may be simulated by disconnecting the electronic power switching device gate (base)
terminal and connecting an external adjustable power supply between the gate (base) terminal and the source
(emitter) terminal of the electronic power switching device. The power supply is then varied so as to achieve a
current that will not damage the electronic power switching device but give the most onerous conditions of test.
NOTE 4 Examples of electronic power switching devices are field effect transistors (FET’s and MOSFET’s) and
bipolar transistors (including IGBT’s).
2#
发表于 2011-12-1 12:55:23 | 只看该作者
我两年前也接触过此问题的测试,没弄懂其实际操作方法。
现在同问。
A2:2006标准出了几年了,有没有什么决议或者有较实用的测试方法?
3#
发表于 2011-12-1 12:55:41 | 只看该作者
一般不需要做这测试。
4#
发表于 2011-12-1 12:55:59 | 只看该作者
开关电源
5#
发表于 2011-12-1 12:56:23 | 只看该作者
这里的意思是如果类似开关电源电路在335里面需要做这样的异常测试吗?
好像挺模糊的
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