LTCC HV transformers

[John Larkin]

Some guys that I know have acquired Nascent Technology.

They make interesting LTCC HV transformers:

https://nascentechnology.com/ltcc-products

 

[Tim Williams]

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: https://www.seventransistorlabs.com/

"John Larkin" <jlarkin@highland_atwork_technology.com> wrote in message
news:akk0met2hj9v0qrg1d5rdmkk0n4lp5h1n3@4ax.com...

Some guys that I know have acquired Nascent Technology.

They make interesting LTCC HV transformers:

https://nascentechnology.com/ltcc-products

 

[Bill Sloman]

On Saturday, August 24, 2019 at 6:59:08 AM UTC+10, John Larkin wrote:

Some guys that I know have acquired Nascent Technology.

They make interesting LTCC HV transformers:

https://nascentechnology.com/ltcc-products

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,

--
Bill Sloman, Sydney

 

On Fri, 23 Aug 2019 19:14:36 -0500, "Tim Williams"
<tiwill@seventransistorlabs.com> wrote:

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

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.

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

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.