C_Capacitor - MapleSim Help

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Home : Support : Online Help : MapleSim : MapleSim Component Library : Electrical : Spice3 : Semiconductors : Passive Components : C_Capacitor

C_Capacitor

Semiconductor capacitor

Modelica Standard Library

	Description
	The C_Capacitor component models a semiconductor capacitor. It allows computing the actual capacitance from strictly geometric information and the specification of the process.

	Equations
	$i = i_{p} = - i_{n} = C_{int} \frac{dv}{dt}$ $v = v_{p} - v_{n}$ $C_{int} = {\begin{array}{c} C & C > {−10}^{40} \\ C_{J} (W - narrow) (L - narrow) + 2 C_{JSW} ((L - narrow) + (W - narrow)) & otherwise \end{array}$

Variables

Name	Units	Description	Modelica ID
$v$	$V$	Voltage drop between the two pins	v
$i$	$A$	Current flowing from pin p to pin n	i

Connections

Name	Description	Modelica ID
$p$	Positive pin	p
$n$	Negative pin	n

Parameters

Name	Default	Units	Description	Modelica ID
C	$−1 \cdot 10^{40}$	$F$	Capacitance, if specified, geometrical information is overwritten	C
T	$27$	$degC$	Temperature of capacitor	TEMP
L	$0$	$m$	Length of the capacitor	L
W	$−1 \cdot 10^{40}$	$m$	Width of the capacitor, default DEFW (modelcard)	W
$IC$	$0$	$V$	Initial condition (voltage on capacitor)	IC
Use IC	$false$		True means use initial condition	UIC
model card			Capacitor modelcard	modelcard

	Modelica Standard Library
	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

Spice3 Overview

Spice3 Semiconductors

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