voltage doubler

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K5IIA:
do you have to use polarized caps on a doubler cirucit like this?

http://www.stevencaton.com/400%20V%20Full%20Wave%20Doubler.html

Opcom:
only if the capacitor type requires that it be charged by DC only

K5IIA:
gotcha so the circuit would not require it.

for the diodes. lets say that the output voltage will be 2kvdc

would 2 diodoes for d1 and 2 diodes in series for d2 be correct. if they are 1kv prv

just didnt know how to look at it sence d1 and d2 are in series and the way i will do it d1 and d2 will be made up of a few diodes each in sereis.

K3YA:
Voltage doubler require a relatively high amounts of capacitance to achieve good filtering and regulation.  If you have any significant current draw on the supply you will need capacitor values that are most practically achieved with polarized electrolytic caps.  What is the application of this supply?

I would use at least a 4 or 5  1kv diode string in in place of a single diode.  Diodes are cheap and you need plenty of safety factor.

K5IIA:
no application. i was building a regular bridge supply for a modulator i am building and just got to thinking about how a doubler works. and when i started readin on it, i had a few questions.

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