DC power supply project

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DC power supply project

Postby ecker2011 » Thu Mar 26, 2015 6:18 pm

For those of you are interested and need to have a power supply which will give you at least 50,000 V DC here are the plans for building such a power supply.

I had talked with the engineer who designed the circuit by phone some years back about increasing the voltage. On the voltage multiplier tower you can add four more capacitors and diodes to have a total of 12 each that will boost the output voltage from 50 KV to close to 80 KV.

HVOLT5V Part 1.pdf
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HVOLT5V Part 2.pdf
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I broke it up into two PDF documents otherwise the file would've been too large to post here.

This is the website for the company that I have done business with. It has a lot of very good information and products.

http://www.amazing1.com/

The most expensive component at the time was the C-14 through 21 capacitors that were rated at.0047 mfd 20kv ceramic capacitor. At that time they were $44.95 each.
If any of you can locate these components cheaper let me know. I personally have a wind to build this power supply but I'm limited financial.

Jess
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Re: DC power supply project

Postby fruitbat » Thu Mar 26, 2015 6:27 pm

Never gIve up. Never surrender. - Commander Peter Quincy Taggart NSEA "Protector"
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Re: DC power supply project

Postby ecker2011 » Thu Mar 26, 2015 6:36 pm

Fruitbat while those might work this is a picture from what you will find in the PDF files.
Here is the eBay site here in the United States which has 50 of them were price of $97.99 http://www.ebay.com/itm/50pcs-20KV-4700 ... 0492950474

5(1).jpg
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Re: DC power supply project

Postby fruitbat » Thu Mar 26, 2015 7:13 pm

Technology moves on. It gets smaller and more powerful.
As it happens I had a few of those blue caps sent to me last year.
Other people seem to be using them OK.

I'm just reading up on how this PSU differs form a flyback transformer PSU.

Another group I am involved with is currently working on a design that can be powered off an included 10volt Lipo battery and which gets it's oscillations from an optical cable.
(Should then be stackable, like a 25KV 8inch tall "battery", the optical cable providing a reliable way of "quenching" each module.)

IN the real world however this looks like a very well worked out and nicely specified HT PSU! Good find, Jess.

FB.
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Re: DC power supply project

Postby ecker2011 » Fri Mar 27, 2015 12:32 pm

Fruitbat make certain you check out the company's website that I posted the link to.
You will notice that they have quite a large selection of electronics equipment.
They also produce DC power supplies that will go up to 500,000 V and you can contact him to have larger ones built.
We also have plans and kits to build Tesla coils going as high as 1 1/2 million volts.
Do not know if you have anything like them over in England but this site is very good here in the US.
The small 30,000 V power supply I have used I bought from them 14 years ago.

Jess
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Re: DC power supply project

Postby fruitbat » Fri Mar 27, 2015 4:09 pm

I think I have one of their earliest catalogues from the 1980's somewhere.
We were very taken wth their 100watt Co2 Laser project as I remember.
We don't have much like them in England. I did find a company with a BIG marx generator for sale in the UK a while back.

Mostly we tend to scratch build or adapt stuff here. Although there are very few people with any real basic electroninc "making" skills that I can discern nowadays in england most nowadays are all "users" of chinese modules.

I built my 25KV supply (Got over 40KV out of it before it failed too!) out of a combination of an originally broken commercial variable output PSU sourced on ebay, for less than the cost of a new transformer, and which of course added the functionality of measuremnt of input power broke down by voltage and crrent, PSU and Naudins plans, (plus a bit of vero board, and old PSU case, a 555, and some electrical capping and and and...) One stumbling block that we have found is that Naudin's LPT is now horrendously expensive and hard to find, so I've been learning a bit about LOPTS and I've now realised that a primary low turns high current coil can be added to ANY lopt, allowing us to use 4.50$ crt transformers and exite them using lower primary voltages. Of course, LOPTS are rapidly becoming a thing of the past, so soon we will need another cheap and cheerful way of generating the required HT.
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Re: DC power supply project

Postby ecker2011 » Sun Mar 29, 2015 5:44 pm

Here are three pictures of the power supply I bought from information unlimited more than 10 years ago.
It has adjustable DC voltage from 0 to 30 KV. Jess

IMG_0001.JPG
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IMG_0002.JPG
IMG_0002.JPG (107.21 KiB) Viewed 676 times


IMG_0003.JPG
IMG_0003.JPG (111.06 KiB) Viewed 676 times
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