|Here are the
results of small signal envelope simulation using phasor source and linear
splitting network, and the results of a point-by-point transient simulation
method. Both simulations were carried out on the Piezoelectric Transformer
with rectifier, driven by FM signal, for three different carrier frequencies.
The solid lines are results of AC analysts, which runs quickly, And the
marked points were done using point-by-point transient envelope simulation of
large signal model of previous study. One point per analysis. As one can see,
the agreement is very good.
note that an envelope analysis is not approximation. It is represents the
numerical result of an exact analytical solution, both for large signal and
AC analysis. So the agreement between the transient and AC simulations is not
surprising. It just shows that we didnít do any mistake preparing the files
or taking the measurements. This simulation results were also verified
against experimental results of reference  of printed paper.