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Hello, I have moved the files to the folder below. Files > Temp > Device Testjigs Files for discussion should be always in the Temp-folder. The current gain of the SPICE model for the 2N4401 doesn't

<snip> </snip> Hi Tim, I don't have Winzip, but I just downloaded the file from the group site and it opened without a problem in Windows Explorer and 7-Zip. You can check whether your downloaded copy

Did you actually want a Voltmeter component in the schematic because the circuit uses one? I did do a panel meter model some time ago

Hi, I'm using LTRA model to model acoustic transmission medium (steel pipe) using LTSpice transmission line model LTRA. The attenuation due to diffraction can be modelled by inputting non zero value

Good People, I was trying to substitute a DXT2222A for a 2N4401 in a circuit I saw on the web. It was a miserable failure (in LTspice). I looked a little at the .model, and was surprised to see a BF

More recent note - Two more mosfet rectifier controllers in the last few months: LM5050 from National Semiconductor is a 6-pin orring controller introduced in Oct 2010, with functionality similar to

There's an LTspice model library (PSpice also) for the new GaN mosfets available from EPC. That's a change for once, isn't it? http://epc-co.com/epc/ToolsandDesignSupport/DeviceModels.aspx RL

You are correct, the diode was too ideal. I put in a 1N4004, and everything worked fine.

Yes, in this simulation they are supposed coupled.

Okay, I have looked at the thermal simulation, Haha um... Didn't notice that one. If you insist on using the CFP output over the Darlington EF, I suggest you thermally couple the drivers and bias

Yes,

Hello Angelina, You don't need a special symbol. This model works with the symbol "opamp2" which comes with LTspice. It's in [Opamps]. Place the opamp2 on the schematic. Change the value opamp2 to

Yes this is what I am modelling. It is not difficult. The only trouble I have is knowing about LTspice.

Also, transistor models generally do not include package thermal resistance! This is a key element that you need in any attempt to model thermal behavior. Again, not impossible to deal with, but, in

Your problem may be: modelling the temperature depending on power dissipation on a heatsink and the heat-capacity of that heatsink and ambient temperature. Not impossible (and some people did that in

Another MultiSim user? You may display a voltage at a defined point (referring to ground) Even the difference voltage between two points at your schmematic. V(n001)-V(n002). Shown like the screen of

Hello Marc, Many device types allow an individual temperature parameter on an instance level. Example: bipolar transistor 2N2222 Just change 2N2222 to 2N2222 Temp={T1} You can have