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Mike,
Can you PM me with some spice data I can use for LTSpice.
And also give me price and lead time on these trannies.
Do you have gapped version of line output I could model in the 10-25ma range?
Follow Ups:
I don't have spice parameters to send you. it's not necessary to use spice to design a really good circuit. And spice leaves out entirely important operating parameters such as core losses and the variation of perm with drive level. Or the beneficial effect of preserving magnetic head room on minimizing core distortion. I'm not a fan of spice.The B7-15K in low (50%) nickel is $125 each... lead time is four to six weeks. Each pair are matched and made to order.
We do not build airgapped line level output tranneys... as they don't perform nearly as well as our parafeed models.
MSL
Builder of MagneQuest & Peerless transformers since 1989
Edits: 09/03/17 09/03/17
"spice leaves out entirely important operating parameters such as core losses and the variation of perm with drive level. Or the beneficial effect of preserving magnetic head room on minimizing core distortion."
I don't really know that much about spice but couldn't those things be included in a sim?
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
IIRC, most versions of Spice include devices specified by their Laplace transform. That's what you need to get closer to these more complex effects.
But to the best of my knowledge, no transformer maker provides such detailed models. If you need it, you'll have to measure the device yourself, and create the Laplace model to approximate those measurements. I have done this, but it's a major pain in the backside. The only place where I find it necessary these days is in modeling the "inductance" of loudspeaker voice coils - and that one is simple enough that I do it in a spreadsheet.
.
Have Fun and Enjoy the Music
"Still Working the Problem"
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