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From: davet@tsdiag.ccur.com (Dave Tiller N2KAU)
Newsgroups: sci.electronics
Subject: HV power supply for HeNe laser
Keywords: laser, power supply, HV, 2-5 KV
Message-ID: <1140@tsdiag.ccur.com>
Date: 16 Nov 90 16:30:46 GMT
Organization: CONCURRENT,ENG. SERVICES,OCEANPORT NJ
Lines: 18

I recently obtained a 5mW HeNe laser tube at a local hamfest.  Unfortunately
the vendor did not have any power supplies.  My project, then, is to design
a solid state HV supply for this thing.  Here's the rub - I've never designed
a voltage multiplier circuit before.  If anyone could lend me a hand, I'd 
really appreciate it.  Here are the specs as I see them:

12-14V dc input
5KV out, open circuit
1.8-2KV out at 6.5 +- 0.1 mA

I'd rather not use a transformer, but then I' have to have ~9 doublers.
If a transformer is a must, how do you choose the slope of the current
load line?  Any help would be greatly appreciated.
-- 
David E. Tiller         davet@tsdiag.ccur.com  | Concurrent Computer Corp.
FAX:  201-870-5952      Ph: (201) 870-4119 (w) | 2 Crescent Place, M/S 117
UUCP: ucbvax!rutgers!petsd!tsdiag!davet        | Oceanport NJ, 07757
ICBM: 40 16' 52" N      73 59' 00" W           | N2KAU @ NN2Z