SIMPLORER User Manual V6.0 - FER-a

9
292 Modeling Tools
Component Parameters
Description [Unit] Parameter Name Data Type
Thermal Voltage [V] VT real
Saturation Current [A] ISAT real
Reverse Resistance [Ohm] RR real
Component Outputs
Description [Unit] Parameter Name Data Type
Value of the Exponential Function VAL real
Hyperbolic Function
>>Basics>Tools>Characteristics
Because of the great sensitivity of the hyperbolic parameters caused by the large difference in
bulk and reverse resistance, SIMPLORER calculates these parameters itself. In contrast to the
equivalent line function, the hyperbolic function has a steady first derivation in the entire
range of input values. Thus, convergence problems possible with the equivalent line are
avoided.
it () V1 vt () V2 V3 ( vt () ) 2 =
⋅ + + ⋅ + V4 ⋅ vt () + V5 Dialog Settings
«Forward Voltage [V]»«Bulk Resistance [Ohm]»«Reverse Resistance [Ohm]»
Defines the coefficients forward voltage, bulk resistance, and reverse resistance. Common
parameter types. Enter a numerical value, a variable, or an expression in the text box.
Component Parameters
Description [Unit] Parameter Name Data Type
Forward Voltage [V] VT real
Bulk Resistance [Ohm] RB real
Reverse Resistance [Ohm] RR real
Component Outputs
Description [Unit] Parameter Name Data Type
Value VAL real
Diffusion Capacitance
>>Basics>Tools>Characteristics
The diffusion capacitance represents the storage of the minority carrier within the junction after
forward current flow. The diffusion and the junction capacitance were developed for modeling
the dynamic switching behavior of the diode or another semiconductor component.