SIMPLORER User Manual V6.0 - FER-a

SIMPLORER 6.0 — Manual 147
and Cathode; NR is used for the diodes DMPNP and DMNPN which model the reverse operation
mode of the GTO.
For all current amplification factors in common mode constant values are used. The current
amplification of ITCNNPN is adjustable by the parameter K. Recommended values for K are
in the range of 1 to 5.
The model does not consider the influence of critical rates of change in voltage and current in
the outer circuit on the switching behavior of the GTO. Due to the short time constants of the
systems, a small value of the minimum step size (usually some nanoseconds) should be set.
In the following the influences of the parameters on the model behavior are listed:
Element Modification Effect
CNL_DIDA Increase of TT1 Increase of current rise time
Increase of peak reverse current
CNL_SPDA Increase of CJOI Increase of Gate-controlled delay time
CNL_DIDMP, CNL_DIDMN Increase of TT2 Increase of critical hold-off interval
CNL_SPDMP, CNL_SPDMN Increase of CJO2 Decrease of gate-controlled delay time
CNL_DIDC Increase of TT3 Increase of current rise time
CNL_SPDC Increase of CJO3 Increase of gate-controlled delay time
ICNNPN Increase of K Increase of gate trigger current
Dialog Settings
«Static Parameters»
Define the static GTO parameters in the table. Common parameter types. Enter a numerical
value, a variable, or an expression in the text box or use the pin to connect a quantity. Look
the meaning up in the parameter table below.
«Dynamic Parameters»
Define the dynamic GTO parameters in the table. Common parameter types. Enter a numerical
value, a variable, or an expression in the text box or use the pin to connect a quantity.
Look the meaning up in the parameter table below.