. . . 3x

sequential ½ to 2x per stage positive factor amplifier ::

? fast 1x to 1.77x amplifier -- i just try to get a grasp of these things . . .

another 200kHz cascadable "absolute" multiplier

and yet another 200kHz 1

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[Eop]

www voltage multiplier test

src :: http://electricalnote.com/symmetrical-dc-to-dc-converter-with-ic555/
(i donno why they have to post circuits in the web that add up to the climate warming ...)

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mod/fix ::
(the circuit'd do better with true complement wave drive -- e.g. -- a RS digital flop driving two powerful buffers -- in our case -- 555-s)

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[Eop]

Switched capacitor voltage tripler revisited

it seems te heart of the thing is a decent driving signal
extends http://chpsndtch.blogspot.com.ee/2014/10/switched-inductorless-dcdc-converter.html

all transistors and diodes are respectively

2N2222 2N2907 1N4148 1N5817

there's not much time wasted to optimize this circuit - just ran the concept test

the output should likely be additionally regulated and the converter set to run at demand (the output drops below certain threshold) by an electronic control (all of which were not included in this setup)

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[EoP]