Re: Very small, very high ratio, boost converters



On Fri, 23 May 2008 08:56:31 -0700 (PDT), Michael <nleahcim@xxxxxxxxx>
wrote:

Hi there - I need to build a very small, very high ratio boost
converter. It needs to go on a PCB that can be no greater than 1cm in
width and can be no greater than 1cm in height. Length is more
flexible. It will have a 5VDC input and needs to have a 1KV, 1ma
output. Regulation is not terribly important.

....snip! there goes a lot of interesting design stuff!.....


With all of this in mind - anybody have any recommendations as to a
possible route for me to go? Are my calculations for the boost
converter right? I am not typically a power guy - so I could
definitely be messing some things up here.

Why build when you can buy? This sounds like an "off-the-shelf"
device, for example: http://www.emcohighvoltage.com . If you acan
build one cheaper and better, then you can put these companies out of
business or work for 'em!
My point is, custom electronics is great for those applications
where nothing exists to satisfy cutomers, but if there are a host of
products already out there, why go through the misery of design,
testing, electrocution, and customer unhappiness?
I used to work in a research outfit, and it used to drive us
electronics guys nuts when labs would want to build stuff (wasting
weeks and months of time), when they could buy a far superior thing
from an electronics supplier. Why would you want to waste your
precious time on something that highly skilled people have already
perfected, and reduced the costs by economies of scale?
If your "thing" had to withstand high vaccuum, or radiation, or
other weird "one-of" situations, then go for your own design!

-Paul
.



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