1

 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

2


3


4


5

 Any analog modulated signal (AM, FM
or PM) can be described by the following expression:
 The Current in the network excited by u(t):

6


7


8


9


10

 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

11


12


13


14


15


16


17


18

 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

19


20


21


22


23


24

 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:

25


26

 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.
