Heating Diode
Simple diode with heating port
Description
Equations
Variables
Connections
Parameters
Modelica Standard Library
The Heating Diode component uses the standard exponential diode law with temperature-dependency, a term to prevent numeric overflow for a strongly forward-biased diode, and a constant parallel resistance.
An optional heat port provides a thermal connection for the heat generation,
If the exponent vVT reaches the limit maxexp, the diode characteristic is linearly continued to avoid overflow.
i=ip=−in=vR+Ids⁢exp⁡EGn⁢V⁢TdTnom−1⁢TdTnomXTIn⁢{exp⁡vVT−1vVT≤maxexpexp⁡M⁢1+vVT−maxexp−1otherwise
Td={TheatPortUse Heat PortTotherwise
VT=kqe⁢Td
v=vp−vn
LossPower=v⁢i
Name
Units
Modelica ID
v
V
Voltage drop between the two pins
vx
Voltage at pin x, x∈n,p
x.v
i
A
Current flowing from pin p to pin n
ix
Current into pin x, x∈n,p
x.i
LossPower
W
Loss power leaving component via HeatPort
TheatPort
K
Temperature of HeatPort
T_heatPort
vtt
Temperature voltage
vt_t
id
diode current
p
Positive pin
n
Negative pin
Heat Port
Conditional heat port
heatPort
Default
Ids
1·10−6
Saturation current
maxexp
15
Max. exponent for linear continuation
Maxexp
R
1·108
Ω
Parallel ohmic resistance
EG
1.11
Activation energy
1
Emission coefficient
N
Tnom
300.15
Parameter measurement temperature
TNOM
XTI
3
Temperature exponent of saturation current
useHeatPort
true
True (checked) means heat port is enabled
T
293.15
Fixed device temperature if Use Heat Port is false
The component described in this topic is from the Modelica Standard Library. To view the original documentation, which includes author and copyright information, click here.
See Also
Diodes
Electrical Library
Semiconductors
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