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Need help to make Quad II OPT SPICE Model
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Old 24th November 2017, 05:53 PM   #21
jazbo8 is offline jazbo8
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Need help to make Quad II OPT SPICE Model
Yup, that's it.
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Old 6th December 2017, 04:00 AM   #22
jerrylong is offline jerrylong  China
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Now I am beginning to make the OPT, this is the winding arrangement, any suggestion?
26.jpg

27.jpg
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Old 6th December 2017, 07:45 AM   #23
Kay Pirinha is offline Kay Pirinha  Germany
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Doesw anyone understand the info given about the transformer's EI core? What is T, S, L, and H? And what does that ominous resistor R between L1 and L3 mean that has already been showing up in the diagram in posting #7?


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Old 6th December 2017, 08:48 AM   #24
jerrylong is offline jerrylong  China
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the R between L1 and L3 is about 0.36ohm

28.jpg
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Old 6th December 2017, 08:51 AM   #25
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T, S, L, and H are the notations for the internal terminals of the OPT, which are not accessible, unless you take off the transformer housing.
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Old 6th December 2017, 08:54 AM   #26
Kay Pirinha is offline Kay Pirinha  Germany
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From the core info (2nd pic in #22): T = 25 mm, S = 25 mm, L = 42 mm, H = 22 mm. I can't believe that this relates to any electrical connection.


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Old 6th December 2017, 09:00 AM   #27
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Need help to make Quad II OPT SPICE Model
Turner's notations of EI cores:

Screenshot - 12_6_2017 , 9_59_26 AM.png
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