High voltage current and voltage sources

James Rollins · 2009-04-12T07:24:56+00:00

How difficult is it to make a compact transformerless high voltagecurrent and voltage source? Is it possible to adapt the currenttopology with properly rated components and achieve this affect ormodify existing low voltage techniques with such components?For example, suppose I want a current source of around 1mA with a1000V compliance. Could I adapt an LM317(or variant) to drive acapable BJT for such loads?Shows many basic topologies for current sources and it is my beliefthat ideally they all work for any voltage and current. Is thiscorrect? Is my problem dealing simply with component capabilities andisolation issues?Similarly, for switched mode topologies such as a buck-boost if I wereto use capable components(high voltage ratings) and diligently dealwith isolation issues could I expect to have success?Potentially my issues lay with finding the properly rated componentsor finding exotic methods to modify existing components for suchcapabilities?Alternatively, are there any high voltage IC voltage and currentsources?James

Apr 12, 2009 21 Replies

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Fred_Bartoli 17 years ago

OK, I surrender with my very modest 30keV accelerator (but I guess you couldn't display as beautiful images as I could with mine). But now that I've switched to LCD, kinetic energy is even more depressingly low...

-- Thanks, Fred.

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John Fields 17 years ago

In simulation, of course. Why do you think I posted the LTspice circuit list?

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