I was planning a large IN-9 display a while back, and was going to simply
use a toroidal isolating transformer, 230vac in, 115vac out - easily 250 or
300VA in a small toroid. Rectify, don't smooth it, simple current limit,
job done and with full isolation from the mains.
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You received this
I may be under-thinking his, but how about an off-the-shelf
cigarette-lighter inverter? These are available in any desired power, and a
200 watt one is pretty compact. Just throw a bridge rectifier after it
with a filter capacitor, and perhaps some sort of post-regulator if
necessary, and
I think it was on this list that someone once mentioned finding a used
ELECTROPHORESIS power supply for less than a general purpose one. these
tend to be in the right range but are surplus to chem or Bio labs rather
then engineering departments. May not have the current you want and
they
Wow .. first one I looked at was spot on.
They don't look easy to find cheaply though.
Still sniffing around.
All good stuff guys and very much appreciated
On Friday, February 12, 2016 at 5:03:20 AM UTC+8, charles wrote:
>
> I think it was on this list that someone once mentioned finding a used
There's nothing inherently unsafe about non-isolated supplies; like any
high-voltage project, you have to be careful about keeping everything
properly insulated and follow minimum-spacing rules carefully.
The most-dangerous item in a high-current supply is the electrolytic cap.
You *must*
http://www.tube-tester.com/sites/nixie/nixie-clock-cd47/cd47.htm
Maybe this could be helpful
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BTW, when I said lots of small supplies i should also have said don't parallel
the outputs - just have one common.
jk
- Original Message -
From: Phill Scan
To: neonixie-l
Sent: Thursday, February 11, 2016 1:49 PM
Subject: Re: [neonixie-l] Re: High current 1.5A x150V power
Hey Johnk,
I am trying to keep it small ...
I think you are right an Inverter looks like the way to go.
Safety is very important.
But even with lot's of little supply circuits it's still dangerous.
For instance, Three neurons HVPS kit still gives out 29mA at 170V .
which is probably
On 10/02/2016 05:24, JohnK wrote:
So, off-the-shelf mains inverter PLUS simple power supply circuit from
the mains volts, OR add a transformer and rectifier/filter. ??
If safety is an issue, a zillion small powersupplies ?
John K
If you want to go the many small supplies route then I did a
Helpful indeed. Now I know how big the supply will look with a flyback
circuit !...
Very impressive supply. The designer obviously has excellent skills.
The transformer is a bit of a black box though.
The whole thing has been made for just that particular type of trannie.
On Thursday,
No .. I was just saying that that circuit you pointed to on indestructibles
was using car batteries.
On Thursday, February 11, 2016 at 10:47:21 AM UTC+8, johnk wrote:
>
> I thought you said it had to be car batteries?
>
> BTW, unrelated, but something I am reading at present. A
Humm... I am going to have to think about this ... I am not sure I will
have the room for lots of little supplies.
On Thursday, February 11, 2016 at 10:51:05 AM UTC+8, Zedsquared wrote:
>
> On 10/02/2016 05:24, JohnK wrote:
> > So, off-the-shelf mains inverter PLUS simple power supply circuit
Yup... I see that now. After actually reading the PDF I see that an
external PSU is needed.
Calculations. Yes ... good idea ! :-)
You are right of course, I would need a huge "plugpack" ... something along
the lines of a laptop style one.
And it would not be putting out low voltage either which
Message
From: fatmail...@gmail.com
To: neonixie-l@googlegroups.com
Subject: RE: [neonixie-l] Re: High current 1.5A x150V power supply
design for 100 IN9s
Date: Wed, 10 Feb 2016 17:37:02 -0800 (PST)
All excellent points.
Having been on the fixing end of this stuff but never design I never
really
Humm I think something like this maybe ?
Seems to want car batteries to run it though !
So perhaps not plug pack compatible :-(
http://www.instructables.com/id/The-ZVS-driver/
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