Russian voltage multiplicator stacking

[kolbacict]

I didn't make such a design myself, but on "flyback.org"
they said it works.

[nix85]

...

[nix85]

Found the schematic (altho modified) of the multiplier they used and yes, there is no first cap.

This must be the reason they flipped the connections, otherwise it makes no sense, one just needs to continue the cascade as shown below, two 3 stage multiplier next to each other.

[nix85]

For those interested in more about this thread.

https://forum.allaboutcircuits.com/threads/russian-voltage-multiplier-stacking.169391/

[nix85]

Best video i seen on voltage multiplier. Too bad this forum doesn't embed vids but ok.

So in short what happens is simple altho it may seem complicated at first.

Starting with negative halfcycle, C1 charges to 12V through D1. Important notice, C1 is now charged in way that opposes the original voltage. In case you wonder why doesn't current go through D3 or D5 current simply goes through path of least resistance.

So now we got C1 charged and voltage source changes direction. Now voltage source and C1 are in same direction and through D2 they together charge C2 to 24V. Important notice, C1 does not discharge, it remains at 12V.

Then source changes direction again, now we have 12V from the source in same direction with 24V on C2 so 36V althogether will charge C3 through D3. but there is already 12V on C1 in opposite direction, so 36-12 means C3 also charges to 24V.... and so on in same manner.

https://www.youtube.com/watch?v=litsAzP4oqw