Johan
That is what I found adjusting L was a lot easier when setting up the
correct waveform ie soft landing
g3kev
----- Original Message -----
From: "Johan H. Bodin" <[email protected]>
To: <[email protected]>
Sent: Monday, January 10, 2011 3:43 PM
Subject: Re: LF: Re: Capacitor warning and First 500kHz Class E breadboard
> Andy,
>
> the last two pages of
>
>
http://www.cs.berkeley.edu/~culler/AIIT/papers/radio/Sokal%20AACD5-poweramps
.pdf
>
> is a nice and simple guide to the "two dimensional" tuning of the class E
> amplifier. The trick is to get Vdrain make a soft landing on the right
spot of
> the GND runway :-)
>
> By the way, adjusting L may be easier than adjusting C2, it has the same
effect.
>
> 73
> Johan SM6LKM
>
> ----
>
> Andy Talbot wrote 2011-01-10 16:18:
> > Well, the first breadboard with only vaguely correct values worked OK -
so it
> > doesn't look too be all that critical. Design Q of teh tank circuit is
5, so
> > values won't be that important. No need to tap the L measure and get
it right
> > to start with,then use parallel C to fine tune the finished amp. With
this
> > sort of Q. "narrow band" for class E probably means > 10kHz
>
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