Re: [TCML] understanding DRSSTC

[Antonio Queiroz <acmdequeiroz@xxxxxxxxx>]

Hi all:
I wrote a document with some simulations of a DRSSTC, designed with the 
method that I have developed:
http://www.coe.ufrj.br/~acmq/tesla/drsstcexcitation.pdf
The simulations show the compromises between operation at the central 
frequency, between the
two resonances, and operating at the resonances.
Operation at the resonances results in excessive primary current and 
inefficient switching, but you can vary
the output power up or down by changing the number of cycles in a burst.
Operation at the central frequency results, for a given output voltage, 
in the smallest possible input current,
the fastest possible output voltage rise, and efficient switching. 
Operation with feedback from the primary current leads
naturally to this mode of operation, at least with the system designed 
for this. The output power can
be varied, but just down, with smaller number of cycles in a burst. More 
cycles than the designed maximum
don't necessarily increase the output power in this mode. The design 
procedure assumes no load, as done
in the design of a classical Tesla coil, but the consideration of a 
loaded system results in the same conclusions.

Antonio Carlos M. de Queiroz
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