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Home : Support : Online Help : MapleSim : MapleSim Component Library : Electrical : Spice3 : Sources : Current : I_sffm

I_sffm

Single-frequency FM current source

Modelica Standard Library

	Description
	The I_sffm component models a source consisting of a carrier signal of frequency $F_{C}$ frequency-modulated by a sinusuoidal of frequency $F_{S}$ .

	Equations
	$i = i_{p} = - i_{n} = I_{O} + I_{A} \sin (2 π F_{C} t + MDI \sin (2 π F_{S} t))$ $v = v_{p} - v_{n}$

Variables

Name	Units	Description	Modelica ID
$v$	$V$	Voltage drop between the two pins $(v_{p} - v_{n})$	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
$I_{O}$	$0$	$A$	Offset	IO
$I_{A}$	$0$	$A$	Amplitude	IA
$F_{C}$	$0$	$Hz$	Carrier frequency	FC
$MDI$	$0$		Modulation index	MDI
$F_{S}$	$FC$	$Hz$	Signal frequency	FS

	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

Analog Components

Spice3 Current Sources

Spice3 Overview

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