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- Path: sparky!uunet!bcstec!bcsaic!dpd007
- From: dpd007@bcsaic.boeing.com (Mark Standiford)
- Newsgroups: sci.electronics
- Subject: Gas discharge power supplies
- Keywords: Laser Xenon Arc Power
- Message-ID: <82509@bcsaic.boeing.com>
- Date: 10 Sep 92 20:48:01 GMT
- Organization: Boeing Computer Services, Seattle
- Lines: 39
-
-
- I have been trying to build some power supplies for gas
- discharge systems (argon ion laser, CO2 laser, high
- pressure xenon arc lamp) and have repeatedly run into
- the same two general problems.
-
- 1) How do you generate the high voltage necessary
- to initiate breakdown of the gas without frying all your
- low voltage high current components?
-
- 2) How do you regulate the running current to prevent
- oscillation when you have more than a few amps of power to
- deal with (ballast resistors dissipate way too much heat)
-
- I realize I could probably solve problem 1 by using high
- voltage/high current rectifiers, but this is cost prohibitive
- and these kind of components are hard to find new in small
- quantities let alone surplus.
-
- Is problem 2 a candidate for pulse width modulation?
-
- Please note that I am only a hobbiest and not an EE. Any
- pointers to cheap power component sources (I'm not totally
- adverse to using tubes) or texts, especially with practical
- as well as theoretical information would be greatly appreciated.
-
- Notes on scale of power supplies:
-
- would like to run argon ion at approx 90V 10A
- CO2 laser up to 5Kw input power 5Kv 1A (dream on)
- xenon lamp 14V 30A approx 10Kv to strike
-
- Please E-Mail me and if there's enough intrest, I'll
- summarize and post the response.
-
- Thanks in advance,
-
- Mark E. Standiford
- dpd007@atc.boeing.com
-