Helmut, are there formulas or equations to change those parameters?
On 04/10/2013, at 1:02 a.m., "Helmut" <helmutsennewald@...> wrote:
--- In LTspice@..., "j_asoto" <jasoto32@...> wrote:
I have to simulate a complex circuit that have zeners, magnetics, MOSFET, resistors, capacitors and different diodes. the simulation shall be performed at three different temperatures (+25C, -34C, +71C). I already have all the components model at each temperatures, but there is a model of a SCHOTTKY DIODE, that is only at +25C, which is the following:
.MODEL 15ljq100 D(IS=6.15446e-05 RS=0.0153982 N=1.88088 EG=1.3 XTI=3.60437 BV=100 IBV=0.0001 CJO=1.08848e-09 VJ=0.4 M=0.371667 FC=0.5 TT=1e-09 KF=0 AF=1)
These are the questions: In order to have the model behavior on other temperatures (-34C and +71C), which parameters from the model above I have to change? How the parameter are change?(there is a tutorial or formulas that take the temperature as a function of the parameters)?
Thanks
Hello,
The change of the forward voltage versus temperature can be set
with the parameter Eg. This allows you to adjust the -x.xmV/¡ãC.
What also depend on temperature is leakage current in reverse
operation and series resistance Rs in forward operation.
Best regards,
Helmut
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