Now I know that a normal dc-dc boost converter is a fairly straight forward thing, and I could find many online. My problem, or more so my curiosity is in finding where I could get a relatively cheap dc to HV dc boost converter, or at least a basic circuit diagram to work from. This has always puzzled me, and I know there are ways to get my hands on circuits that do this ( camera flashes for instance ) but I am curious how I would go about designing a specific voltage booster. 400v would be ok, 600v-800v would be more along the lines of what I'm looking to find. Or even a reputable source for circuits of this nature. dc- dc via inductor ( though i do not believe this to be the best or most feasible) or dc->ac->rectified dc. A concern would be size of the overall circuit if sourced, would like something within 2x2...2x4 give or take, theres some room to work here most definitely.
The trouble I'm having is finding a way to get a small scale inverter ( I have a standard 12vdc-110vac inverter but its bulky ) that could be rectified, but thats not what im curious or interested in finding. A higher voltage then a 120/240 standard in the ranges above ( really anywhere from 400v-800v maybe higher if its easier to source/find a diagram ). Input voltages could be...1.5v (or multiples) 3.7v ( or multiples ) 9v ( but would not prefer ) or 12v but this is only after the fact thoughts here, I could in essence purchase many types of DC sources to power the circuit so this isn't a necessary, but a strong preference. Output amperage is a trivial concern currently ( pardon the pun ).