Re: LF: Re: My transmit converter description

[Dimitrios Tsifakis <dtsifakis@gmail.com>]

> The whole point of this design is that the output impedance is 50 ohm,
> therefore there is no need for impedance transformation! Try
> calculating the values for a 100 V, 100 W Class-E transmitter and note
> the output impedance.


For those not familiar with Class-E, I can control the power output of
a transmitter by the Vcc I use. The power output is proportional to
the square of the voltage, so by reducing the voltage by SQRT(2), I
get half power: 50 W from 70 volts or so. The calculated output
impedance and C1/C2/L2 do not change with scaling the voltage up and
down. That makes class-e an excellent client for amplitude modulation
:-)

73, Dimitris