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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 message <j57d86+fkkg@...>, Charly Engineering <charly020664@...> writes You need to .lib arachnid.mod, which you can download from the Web. -- This is my travelling signature, adding

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,

gasoltroll wrote: What that probably did was move the series inductance so it is no longer in parallel with the (unspecified but non-zero by default) parallel capacitance, Cpar. Andy

Helmut wrote: Interesting. This is one of those cases where the default value is not zero, but the Help doesn't tell you this. Judging by the Help, I would have thought that the default would be zero.

... I've never seen that, he must have had the idea for the radiator in the second of my birth or he had no wood for his fireplace at home .... best regards Leo...

Tube life is related more to the temperature of their envelope, if the heater is reliably constructed. http://members.shaw.ca/legg/2000a.html I'm not sure that you can assume a more reliable tube

Hi folks, my LTspice-version has problems with that circuit :-) help! best regards Leo ...

<snip> </snip> Hello Carsten, 1. The MN prefix tells SPICE that the device is an N-channel MOSFET. 2. An intrinsic device is a fancy name for a circuit element that is built in to the SPICE code.

de.sci.electronics, You can have plenty of knowledge, first You will get canings :-) best regards Leo ...

There is something I would like different, but have always been so grateful for LTspice that I didn't want to rock the boat; In the schematic editor, it is not possible to pan far (or sometimes at

A collegue suggested that I put the parasitics of the kapacitor in discrete components in series, and that fixed the problem. Bug? /Johan

Hiya Mike Now that I have well over 100 different diode types in Ltspice I think that something that I would find useful would be a selector box for diode type "All, Germanium, Silicon, ZENER,

Schematic is uploaded, but the calculation is missing. Temporary P(in) is zero (as capacitor is already loaded and I(in) is zero.) That may cause a division by zero. hws

Methode how to calculate efficiency is missing. Please notice that R1 is not connected to gnd. I suppose you calculated like this: voltage should be: V(n003)-V(n004). Current is I(R1) so power is

Hi Micheline, Could you please post the circuit schematics, Symbols, and models and all relevant files in the Temp files of this group ? It is a lot easier with a schematic to troubleshoot. Best

Which german newsgrop? hws