This program simplifies the design of the
single-ended class E amplifier. Operation is
intuitive and encourages circuit exploration.
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.
- Each of the six design parameters
can be specified using a freeform entry
- 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
- Each parameter has a default
value and entries are checked to reduce the
probability of ridiculous results.
- As an option the program will
read a user-entered load value and match the
amplifier to that value of load using an added
- Data are written automatically to
a "last session" file at program exit time,
allowing a simplified program restart.
- 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.
- The program also writes a
schematic (.ASC) file to drive the LTspice
simulator from Linear Technology. (Tonne Software
has no connection with Linear Technology.)
Alan Melia, G3NYK, has written a paper using a
Greg Adams at CircuitSage has written a MathCad
routine. (This is a PDF file.)