. . . 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]

prev. follow up x2

modified known (but much likely a lot) simplified circuit

versus not so much slower but a lot more simple circuit

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update :: 2018.04.21 -- about the poor performance of above . . .

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[Eop]

prev. follow up

1 quadrant multiplier - divider -- exact but tending to unstable ??

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[Eop]

examining a couple of web variable gain amplifier circuits

attenuating

the 0 to 34 mV  control voltage range sounds like a bit utopistic here
(everithing else looks good however)

amplifying/attenuating

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2018.04.18 -- Update ::

bipolar v. of the previous

integrated analog multiplier substitute for VGA

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[Eop]

theoretical experiment of 3 to 12 V boost converter

Simple , minimal ::

. . . with error as switch gets near constant 18mA to it's base due xa should be xi

however using cascade drive for switch poses problems -- also a good definition method for vc2 (LMx39/x93 OUTP)

some fixes -- no change . . . need to opt. the drive power usage


[Eop]