Subject: Re: Mains (~110VAC) voltage to ~800VAC?
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Date: Sat, 23 Nov 2002 19:32:01 GMT
NNTP-Posting-Date: Sat, 23 Nov 2002 11:32:01 PST
Organization: EarthLink Inc. -- http://www.EarthLink.net
Why don't you use a transformer?
"J81" wrote in message
> On Sat, 23 Nov 2002 16:05:55 GMT, firstname.lastname@example.org (carltons) wrote:
> >In article , J81
> > wrote:
> >> My knowledge of AC electronics is limited, which has me in a bit of a
> >> bind.
> >> All I know is that I need 7.5 mA of current at 800 VAC for these
> >> cold-cathode lamps I have, but I don't know at what frequency. I'm
> >> wondering what a simple/cheap circuit design for getting 800VAC from
> >> my 110VAC wall outlet would be.
> >> ideas?
> >> thanks in advance.
> >> -J
> >This sounds like a requirement for a fluorescent bulb ballast. Try
> >looking at those.
> AFAIK, the lamp doesn't require a ballast, just 800VAC at 7ma. It
> doesn't require any pre-heating of the cathode or anything, which is
> why it's called a cold cathode lamp. I'm just curious if there's a
> simple design floating around, or if somebody could whip one up for
> me, for a circuit that will step 110VAC up to 800VAC. Anywhere in the
> 800-1000 VAC range would be great, really.