This program simplifies the design of the single-ended
Class E amplifier. Operation is intuitive and encourages
"tuning" and exploration.
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Each of the six design parameters can be specified using
a freeform entry scheme.
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Each of those parameters can be "tuned" by clicking on the
"+1%" and "-1%" buttons; see the graphic below. This
allows instant feedback regarding what parameter affects
what schematic trait.
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Each parameter has a default value and entries are checked
to reduce the probability of ridiculous
results.
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Data are written automatically to a "last session" file at
program exit time, allowing a simplified program restart.
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Your design can be written to a file with a path and name
of your choosing for later recovery.
This is in addition to the automatically-written last
session file.
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You can also write a Spice file for checking real-world
performance, to see the effect of adding additional parts
or to see the output spectrum. This file uses an ideal
switch (math model) with its "Ron" value set to that
calculated by the program. You may drop in your own
actual device if you know its parameters.
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The schematic as delivered to the printer is of high
quality and shows the node numbers used in the PSpice
file.
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The supplied file is a self-extracting installation
routine. The program is installed in a standard manner.
You may place its icon on the desktop as a shortcut.
This program uses the revised equations presented in
"QEX" for Jan/Feb 2001. They are close to but seem to be
more accurate than the more-commonly used set of equations
presented in "RF Design" for Summer, 1980.
Alan Melia, G3NYK, has written a paper using a
spreadsheet approach.
Greg Adams at CircuitSage has written a
MathCad routine.
(This is a PDF file.)
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