Re: Win's next 10kV project, a 1us ramp

On 6 Jan 2006 11:46:56 -0800, Winfield Hill
<Winfield_member@xxxxxxxxxxx> wrote:

>John Larkin wrote...
>>
>> Joerg wrote:
>>>
>>> Is it going to be a stack of FETs? Or can you use a tube?
>>>
>>> Anyway, I was thinking about those ballast triodes in earlier
>>> color TVs. If there is any chance to find one, that is,
>>> without having to rent a backhoe and dig through a landfill.
>>
>> 6BK4, 25kV but can sink only 1.5 mA, not enough to drive
>> Win's load.
>
> Guess it's going to be a stack of FETs...


Sounds like it.

Instead of a stack of fets and a 10KV supply, might it be possible to
sort of stack stages, and run each one from a charged cap (sort of a
controlled Marx?) or maybe individual dc/dc converters, maybe a dozen
stages at 800 volts each?

John

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