This information is part of the Modelica Standard Library maintained by the Modelica Association.

This diode model is an improved version of the simple diode model. It includes a series resistance, parallel conductance, and also models reverse breakdown. The model is divided into three parts:

• lower half of reversed bias region including breakdown: -Ids·(exp(-(vd+Bv)/(N·Vt)) + 1 - 2·exp(-Bv/(2·N·Vt)))
• upper half of reverse biased region and forward biased region before conduction: Ids·(exp(vd/(N·Vt)) - 1)
• forward biased region after conduction: iVdMax + (vd - VdMax)·diVdMax

Temperature dependent behaviour is modelled when useHeatPort=true. In that case, the Vt parameter is ignored, and Vt is computed as k·T/q, where

• k is Boltzmann's constant
• T is the heat port temperature.
• q is the electron charge.

useHeatPort	Value: false Type: Boolean Description: = true, if heatPort is enabled
T	Value: 293.15 Type: Temperature (K) Description: Fixed device temperature if useHeatPort = false
Vf	Value: 0.7 Type: Voltage (V) Description: Forward voltage
Ids	Value: 1e-13 Type: Current (A) Description: Reverse saturation current
Rs	Value: 16 Type: Resistance (Ω) Description: Ohmic resistance
Vt	Value: Modelica.Constants.R * T / Modelica.Constants.F Type: Voltage (V) Description: Thermal voltage (kT/q), 0.026 at normal conditions (around 20 degC)
N	Value: 1 Type: Real Description: Emission coefficient
Bv	Value: 100 Type: Voltage (V) Description: Reverse breakdown voltage
Gp	Value: 1e-6 Type: Conductance (S) Description: Parallel conductance for numerical stability