LTCC HV transformers

Looks interesting but the leakages are truly embarrassing. Maybe resonant would be practical.

Wonder how practical it would be to use ceramic coated wire for winding, then fire a core around it. Probably ~impossible to get the shrinkage to work out.

Tim

-- Seven Transistor Labs, LLC Electrical Engineering Consultation and Design Website:

Stuff that works up to 300 Celcius must have revolutionary magnetic parts, or none at all.

I don't know of any commercial ferromagentic material with a Curie temperature about 300C.

Magnetite and hematite rocks get up there - maybe LTCC is using them as magnetic cores,

Pretty obvious that they would be low power. The leakage inductance might be OK.

But if you need a few uA at 2KV or something, at low efficiency, they could be great. Depending on price.

I'm thinking this is a multilayer co-fired ceramic, like a ferrite bead. Mini-Circuits makes some filters like this. Tend to be lossy like, um, a ferrite bead.

I'll get a sample and play with it. The pulse transformer too.