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Author Topic: High voltage  (Read 6723 times)

TheOne

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High voltage
« on: July 18, 2007, 06:43:36 PM »
Can we use a Microwave Ovens transformer to generate high voltage from a 12 volt battery?

A Microwave Ovens transformer can usually convert 120V to 2500V, I was wondering if we can plug a 12V and hope something like 250v ?

Can we use it directly or we need some kind of circuit to be able to use it?

thanks
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TheOne

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Re: High voltage
« Reply #1 on: July 18, 2007, 06:50:36 PM »
The main purpose of this thread is for the use of Microwave Ovens with hydrogen cell, putting higher voltage on the cell using only a 12volts battery
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Duranza

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Re: High voltage
« Reply #2 on: July 18, 2007, 06:58:32 PM »
Seems to be like a good idea to try.. I have a few microwave ovens not being used, I might just give it a try...
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rapttor

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Re: High voltage
« Reply #3 on: July 18, 2007, 08:12:35 PM »
I thought it might be worth giving a try using a MOT running off a Variac, but you have to externally "ballast" the MOT, or you will melt the secondary / and or blow the circuit breaker for sure.
Be very careful using MOT's, alot of the time, there's no second chance!

Here's some info on it:
http://www.kronjaeger.com/hv/hv/src/mot/index.html

Ballast info:
http://dawntreader.net/hvgroup/ballast.html
http://www.richieburnett.co.uk/ballast.html

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TheOne

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Re: High voltage
« Reply #4 on: July 18, 2007, 08:52:34 PM »
but is using this with 12v will work and generate 250v ?

is ballast for this are cheap?
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Duranza

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Re: High voltage
« Reply #5 on: July 18, 2007, 10:11:10 PM »
If we can use this in our HHo cells, the cell itself will be the current limiting ballast and will let out wasted heat in the process.
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Hot Hydro Dady

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Re: High voltage
« Reply #6 on: July 20, 2007, 12:12:50 AM »
You will need AC to hook to the MOT or pulsed DC to get a voltage out which would be AC so it will also need to be Rectified.
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reddb49

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Re: High voltage
« Reply #7 on: July 20, 2007, 05:36:34 AM »
I have tried a large microwave transformer with my PWM on the primary side and check the voltage on the high side. The voltage was up but when I hooked it to my large cell nothing happened. I am going to try to re-wind the secondary like on this page. This might help.

http://www.aaroncake.net/circuits/inverter.asp
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lincolninked

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Re: High voltage
« Reply #8 on: July 21, 2007, 03:30:18 AM »
The inside of a microwave is a dangerous place.  DO NOT TRY WHAT YOU ARE THINKING WITHOUT A WILL.  The energy inside a microwave can put you on your butt, real quick.  BEWARE!
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TheOne

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Re: High voltage
« Reply #9 on: July 21, 2007, 04:07:18 AM »
he dismantled 2 microwave this summer without any problem ;)

I AM STILL ALIVE YAHOO!
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Paul-R

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Re: High voltage
« Reply #10 on: July 21, 2007, 04:14:47 PM »
Quote from: TheOne on July 18, 2007, 06:43:36 PM
Can we use a Microwave Ovens transformer to generate high voltage from a 12 volt battery?
A Microwave Ovens transformer can usually convert 120V to 2500V, I was wondering if we can plug a 12V and hope something like 250v ?
Can we use it directly or we need some kind of circuit to be able to use it?
thanks
Microwave ovens often contain a glorious transformer which is 8:1. It turns
mains voltage (240 volts in the UK) into almost 2000 volts.

But transformers will only work with AC, Alternating Current. They will not
function with Direct Current. (They will probably melt and burn)

If you want to alter voltages, start with AC, transform them, and
then use a rectifier to get them back to DC. A bit wasteful, and there
are cleverer methods like DC-DC converters.
Paul.
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