This is an aid for designing class-e amplifiers, as described in
Nathan Sokal's paper titled
"Class-E RF power amplifiers", published in QEX Jan/Feb 2001.
You need to provide Q, Vcc, Vo, P, F and L1 and the calculator will
provide values for the rest. See the schematic below for details.
If you use this calculator in one of your designs, please reference
Enter Q (around 5 is a good start):
Enter Vcc in volts:
Enter Vo (transistor/FET saturation voltage) in volts:
Enter frequency in kHz:
Enter the desired power output in watts:
Enter L1 in mH:
R in ohm is:
(Impedance transformer to 50 ohm: secondary (50 ohm) to primary (amplifier) turns ratio:
C1 in nF is:
C2 in nF is:
L2 in uH is:
Expect Icc in amps at least:
Select a FET/transistor with a max Vds/Vce in volts at least:
(Includes a safety factor of 0.8)
For more info on designing Class-E amplifiers for LF/MF, see
VK1SV's Class-E for beginners
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