# TRANSFORMER QUESTION

Discussion in 'General Electronics Chat' started by magnetman12003, Aug 8, 2015.

1. ### magnetman12003 Thread Starter Active Member

May 10, 2008
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0
I have a 20 KHZ HI FREQUENCY power supply that puts out 1143 AC volts
I want to reduce the voltage to 14 AC volts as my output.
That's a ratio of 82 to 1
Can I use a 4KHZ transformer that has a secondary impedance of 2200 ohms and a primary impedance of 25 ohms?
That's a ratio of 88 to 1. Very close to 82 to 1

Just what transformer turns ratio are required to directly connect the transformer to the power supply having stated all the above? I have re edited this with detailed info.

In short I am seeking a transformer that will work connected to my plasma ball in the below video.

Last edited: Aug 9, 2015

Jan 15, 2015
1,926
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I doubt it. There is a great deal more to this. You mentioned 1,232 volts but no mention of that frequency? Then you mention a Hi Frequency AC transformer but fail to mention what you are calling High Frequency. For example if I use a transformer rated for 400 Hz at 60 Hz the result will be heat and burning. Additionally if I apply greater than 1 KV to a transformer rated with a 600 VAC breakdown voltage bad things will happen. Your post really lacks any detail making it about impossible to answer. So I'll just say no. Get a transformer designed for doing what you need done. I will also get back to you here in the forums, nowhere else.

Ron

3. ### AnalogKid AAC Fanatic!

Aug 1, 2013
5,581
1,582
If the primary and secondary values you stated are DC resistances, they are irrelevant. If they are impedances, they indicate a turns ratio that is les than what you need.

ak

4. ### Lestraveled Well-Known Member

May 19, 2014
1,957
1,224
Reloadron summed it up very well. Just the input voltage of 1,232 volts AC, will demand a special transformer that is capable of handling that high of a voltage without self-destructing. I think this parameter drive the rest of your design.

5. ### tcmtech Distinguished Member

Nov 4, 2013
2,684
2,446
So what hidden energy are we supposed to be looking at here? HV corona effects being captured and used to light a LED bulb?