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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?
6 g! k" O: @$ u1 F1 x1 i2 w7 e& R+ ^8 l% n0 y9 e5 w; U" _) M, h; i
覆标准章节:, A \ P9 r; ~: Z" [
8 N5 x2 x/ ~: J- G9 ^19.11.2 In the first paragraph of the test specification, add the following after Note 2:
$ k2 u0 i6 q1 @ gg) failure of an electronic power switching device in a partial turn-on mode with loss of
, H \6 c2 B% \9 L- J% tgate (base) control. During this test, winding temperatures shall not exceed the values
5 h) ^' k, A% M# a% ]given in 19.7." C* H) R# H8 x9 ` W
NOTE 3 This mode may be simulated by disconnecting the electronic power switching device gate (base)
' O" A% t/ ^7 c/ U9 S3 m" {terminal and connecting an external adjustable power supply between the gate (base) terminal and the source
) G! J1 a, ]% O8 r4 @8 n: O(emitter) terminal of the electronic power switching device. The power supply is then varied so as to achieve a' f: V- Y% B" i" a
current that will not damage the electronic power switching device but give the most onerous conditions of test.2 f$ o( G2 C3 E( s e* i% J R
NOTE 4 Examples of electronic power switching devices are field effect transistors (FET’s and MOSFET’s) and$ o( _4 q& z6 y9 h* U, p# x
bipolar transistors (including IGBT’s). |
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