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

The simple diode is an electrical one port, where a heat port is added, which is defined in the Modelica.Thermal library. It consists of the diode itself and an parallel ohmic resistance R. The diode formula is:

                v/vt_t
  i  =  ids ( e        - 1).

where vt_t depends on the temperature of the heat port:

  vt_t = k*temp/q

If the exponent v/vt_t reaches the limit maxex, the diode characteristic is linearly continued to avoid overflow.
The thermal power is calculated by i*v.

useHeatPort	Value: true Type: Boolean Description: =true, if heatPort is enabled
T	Value: 293.15 Type: Temperature (K) Description: Fixed device temperature if useHeatPort = false
Ids	Value: 1e-6 Type: Current (A) Description: Saturation current
Maxexp	Value: 15 Type: Real Description: Max. exponent for linear continuation
R	Value: 1e8 Type: Resistance (Ω) Description: Parallel ohmic resistance
EG	Value: 1.11 Type: Real Description: Activation energy
N	Value: 1 Type: Real Description: Emission coefficient
TNOM	Value: 300.15 Type: Temperature (K) Description: Parameter measurement temperature
XTI	Value: 3 Type: Real Description: Temperature exponent of saturation current

• March 11, 2009 by Christoph Clauss
  conditional heat port added
  
• April 5, 2004 by Christoph Clauss
  implemented