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Hi folks,

my LTspice-version has problems with that circuit :-)

help!

best regards Leo ...

--- In LTspice@..., "Charly Engineering" <charly020664@...> wrote:

Hi folks,

my LTspice-version has problems with that circuit :-)

help!

best regards Leo ...

Hello Leo,

To my mind the ideal device for your circuit is the old VMP4 - a first generation VMOSFET from Siliconix from about 25years ago. These devices had a remarkable combination of properties, but I believe they also had spectacularly low manufacturing yield due to the V groove. Otherwise, their descendants might still be with us. Does anyone have more info on this?

You might investigate whether GaN FETs would do the job for you. Check out:


.. for example.

Regards,
Tony

In message <j57d86+fkkg@...>, Charly Engineering <charly020664@...> writes

my LTspice-version has problems with that circuit :-)

You need to .lib arachnid.mod, which you can download from the Web.
--
This is my travelling signature, adding no superfluous mass.
John M Woodgate

--- In LTspice@..., "Tony Casey" <tony@...> wrote:

You might investigate whether GaN FETs would do the job for you. Check out:


.. for example.

Regards,
Tony

Yes, GaN FETs are perhaps godd for that. I've thought about that. They are good, if they have a large input resistance and low input capacity.

I will check that.

best regards ...

--- In LTspice@..., John M Woodgate <jmw@...> wrote:

In message <j57d86+fkkg@...>, Charly Engineering
<charly020664@...> writes

my LTspice-version has problems with that circuit :-)

You need to .lib arachnid.mod, which you can download from the Web.
--
This is my travelling signature, adding no superfluous mass.
John M Woodgate

Thanx John, I will spend the rest of this day with searching the lib .lib ararchnid.mod.

I think the best is to search in www3.

best regards ...