


Simon Lineykin and Sam BenYaakov* 

Power Electronics Laboratory
Department of Electrical and Computer Engineering
BenGurion University of the Negev
P. O. Box 653, BeerSheva 84105, ISRAEL 

Phone: +97286461561, Fax: +97286472949
Email: sby@ee.bgu.ac.il, Website: www.ee.bgu.ac.il/~pel 







Any analog modulated signal (AM, FM
or PM) can be described by the following expression: 







The Current in the network excited by u(t): 









Cyclebycycle (full simulation) 

High and low frequencies 

Very long simulation 

Only transient 

AC transfer function > pointbypoint 

Envelope simulation (Large Signal Previous
study) 

Only low frequency 

Only transient 

AC transfer function > pointbypoint 












To extend the envelope simulation method to AC
analysis 

A method that would not need an analytical
derivation 

Same model compatible with DC, AC, and Transient
analysis types 










DCsweep in envelope simulation is equivalent to
frequency sweep in full simulation 

The parameter of DC sweep is a carrier frequency
f_{c} 

The source for DC sweep: 





Envelope simulation method was extended to cover
all simulation types: Transient, AC, DC. 



Method is suitable for any linear circuit. 



Method is also suitable for nonlinear circuits
that can be linearized for small signal. 
