This program simplifies the design of the single-ended
class E amplifier. Operation is intuitive and encourages
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 scheme.
- Each of those parameters can be
"tuned" by clicking on the up and down 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
- As an option the program will read a
user-entered load value and match the amplifier to that
value of load using an added L-network.
- Data are written automatically to a
"last session" file at program exit time, allowing a
simplified program restart.
- The program also writes a schematic
(.ASC) file to drive the LTspice simulator from Linear
Technology. (Tonne Software has no connection with
Alan Melia, G3NYK, has written a paper using a spreadsheet
Greg Adams at CircuitSage has written a MathCad
routine. (This is a PDF file.)