Re: HV regulated power supply help

On Fri, 25 Apr 2008 17:48:55 +0930, "spock" <vk5abcnospam@xxxxxxxxxxxxxxx> wrote:

Hello Everyone
I need to build a Variable regulated dc power supply. 0 - 600V dc @ 300mA
Would a IGBT device be suitable as a control element, the only circuits I have
seen use vacuum tubes but will not handle 300mA only 100mA and they use two
6L6 in parellel in class A. Any ideas please.

Lee


That's a LOT of heat to dissipate especially with an output short circuit, so you're probably looking at
multiple pass elements unless you can vary the input to the regulator as you vary the output voltage.
A switchmode preregulator?
The Art of Electronics has a section on high voltage regulators, so you might want to check there.
It talks about using a mosfet or possibly an NPN bjt (MJ12005) as the pass element.

Mike


"In view of such harmony in the cosmos which I,
with my limited human mind, am able to recognize,
there are yet people who say there is no God.
But what really makes me angry is that they quote
me for the support of such views."
Albert Einstein (theoretical Physicist)
.

Relevant Pages

  • Re: HV regulated power supply help
    ... Would a IGBT device be suitable as a control element, the only circuits I have ... seen use vacuum tubes but will not handle 300mA only 100mA and they use two ...
    (sci.electronics.design)
  • Re: Intel technology newsletter transpace.gif [1/2]
    ... Such a huge improvement over the old vacuum tubes. ... tube could be hooked up to it and you could actually see the hex ... semiconducter business in 1984, the traces on the circuits were 18 to 15 ...
    (microsoft.public.windows.inetexplorer.ie6_outlookexpress.stationery)
  • Re: Illegal to feed the homeless? (was mom-verbal)
    ... astounds his friends, and the government, by proving he can do ... had been replaced with miniature vacuum tubes, ... Wired circuits had been replaced with printed circuits. ...
    (rec.arts.sf.fandom)
  • Re: HV regulated power supply help
    ... Would a IGBT device be suitable as a control element, the only circuits I have ... seen use vacuum tubes but will not handle 300mA only 100mA and they use two ...
    (sci.electronics.design)
Quantcast