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Signal generator output conversion to 2KV

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LAN_403

Energyman

Sat May 19 2007, 04:03AM

Registered Member #788 Joined: Sat May 19 2007, 02:31AM
Location:
Posts: 10

Hi,

I am a newbie with a fairly basic understanding of electronics. I want to convert a 12v output from my signal generator (square wave) to about 2KV without changing the frequency at all. I feel that this should be a fairly simple task but I have Googled till I am blue in the face with no results. I am working with frequencies in the range of 1.2 - 1.3 Mhz and I am using the output to generate scalar waves through about 10 ohms of coil.

Any advice would be gratefully received.

Thanks in advance,

...

Sat May 19 2007, 04:36AM

Registered Member #56 Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2445

How much power are you using?

It should be pretty strait forward to feed the output of the signal generator into a gate driver such as a tc4422, and then feed that into a high voltage mosfet in an open collector scheme.

Energyman

Sat May 19 2007, 05:21AM

Registered Member #788 Joined: Sat May 19 2007, 02:31AM
Location:
Posts: 10

I am not using much power at all - 2 watts or so.

Your reply falls outside my knowledge base I am afraid. Any idea where I might find the resources for this (plans). I have had a look at the tc4422 and this seems simple enough but I have had no experience using hv mosfets.

Sulaiman

Sat May 19 2007, 08:10AM

Registered Member #162 Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3140

Good Luck !

At 1.25 MHz for 2kV the output would have to change at more than 5 gigavolts per second
which presents a few challenges, though it can be done.

Neither I nor this forum (as far as I know) accept the existence of electromagnetic scalar waves
but consider such things under the category pseudo-science, which is banned from 4HV.

What do you think scalar waves are, and how do you intend to produce them?

Energyman

Sat May 19 2007, 09:52AM

Registered Member #788 Joined: Sat May 19 2007, 02:31AM
Location:
Posts: 10

Hi,

I am using a caduceus coil to produce scalar waves. Scalar waves were being researched by Tesla. I hope that you are not saying that Tesla was a pseudo-scientist! Not on this forum, anyway!

There is plenty of info. on the net about scalar waves and I am not going to justify their existance here so I hope that keeps me on safe ground as far as the rules go.

I am glad that you think it can be done Suleiman. Any practical advice will be gratefully received.

Thanks,

Steve Conner

Sat May 19 2007, 10:53AM

Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706

Scalar waves and caduceus coils are totally unacceptable topics for this forum, so let's have no more talk of them.

If I wanted to boost the output of a signal generator to 2kV (which is a perfectly acceptable topic of discussion) I would reach for a large vacuum tube of some sort. Probably a tetrode like the 6146 or 811A.

Energyman

Sun May 20 2007, 06:21AM

Registered Member #788 Joined: Sat May 19 2007, 02:31AM
Location:
Posts: 10

Hi Steve,

I don't want to talk about scalar waves only the electronics so we are clear on this.

Thanks for the input on the valves. Again, any idea where I can find the resources to put together a circuit. I am not adverse to paying for it if somebody has the knowledge and the time to put something together.

...

Sun May 20 2007, 06:35AM

Registered Member #56 Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2445

I could build you a system to do what you want, but I can only make it a a spec defined in the real world (say, will drive a 2kv square wave @ 1.5MHz with rise and fall times of Xns into a 1meg load with 1pf of capacitance) since I do not expect your experiment to go anywhere. I charge $10/hr work + parts.

Energyman

Sun May 20 2007, 07:28AM

Registered Member #788 Joined: Sat May 19 2007, 02:31AM
Location:
Posts: 10

Thanks for the offer.

Sent you a pm

Bored Chemist

Sun May 20 2007, 08:25AM

Registered Member #193 Joined: Fri Feb 17 2006, 07:04AM
Location: sheffield
Posts: 1022

Feeding that voltage into 1Mohm I can just about believe. Into (as stated in the initial post) about 10 ohms would need an inconveniently large power. Where do you plan to get 400Kw from?
Also, a 2KV sine wave at 1.MHz needs a slew rate of 5GV/sec, but a square wave takes a lot more. To get a decent square you will need up to the fifth harmonic and probably the 11th.

These numbers are just silly.

They might be achieved by someone with a military budget, but not by a home experimenter.
Why go ot all that effort and expenditure for something that's a myth anyway?

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