Re: audio modulated SSTC

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: herwig.roscher-at-gmx.de 


Antonio Carlos M. de Queiroz <acmq-at-compuland-dot-com.br> wrote:

 >>  Because of the flywheel effect the correct waveform should be
 >>  restored. How is "linearity" defined?
 > Linearity here applies to modulation linearity.

Antonio,

Does "linearity" in this context mean, that an increase of e.g. 20 %
of audio power should result in the same increase of RF power?

 > Class C amplifiers need a high-Q tank, and itīs difficult to vary the
 > amplitude of the oscillations rapidly, or even in linear proportion to
 > a signal modulating the power supply.
So, the reason for the non-linearity of class C amplifiers mainly is
the high-Q tank, which starts ringing (as class C operation is
switching this resonant circuit)?

Thank you,

Herwig




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