- #1
Nash78
- 20
- 0
With all courtesy to Mr William Nechefski for this circuitry.
I have gone ahead to build this circuit. Everything is the same except the transformer.
I had a old transformer with was used to step down from my 50hz mains.
Primary 12-012
Secondary 0-230V
Power 12VA
My transformer has a average ratio of 1:10 turns,
The self made transformer is 50/2000 turns, means a ratio of 1:40 turns
I played around with the frequency using the trimmer and got around 550-600V pulsed output. 1:40 supposedly gets 2000V output, so my 1:10 gets 550-600V. Pretty straightforward.
Things turned out pretty well for a good 30 secs and the output dropped to 80V.
MY QUESTION.
A transformer designed for 50hz would work for this type of application?
It seems the output voltage dropped due to the saturation of the transformer.
If i switched it on for a longer time, i think the tx would eventually burn out due to the high frequency oscillations.
Even when i reduced it around 2.5khz from 20khz, it was eventually the same.
HOW to overcome the saturation problem then? If that is the problem.
Rgds,
Nash78
I have gone ahead to build this circuit. Everything is the same except the transformer.
I had a old transformer with was used to step down from my 50hz mains.
Primary 12-012
Secondary 0-230V
Power 12VA
My transformer has a average ratio of 1:10 turns,
The self made transformer is 50/2000 turns, means a ratio of 1:40 turns
I played around with the frequency using the trimmer and got around 550-600V pulsed output. 1:40 supposedly gets 2000V output, so my 1:10 gets 550-600V. Pretty straightforward.
Things turned out pretty well for a good 30 secs and the output dropped to 80V.
MY QUESTION.
A transformer designed for 50hz would work for this type of application?
It seems the output voltage dropped due to the saturation of the transformer.
If i switched it on for a longer time, i think the tx would eventually burn out due to the high frequency oscillations.
Even when i reduced it around 2.5khz from 20khz, it was eventually the same.
HOW to overcome the saturation problem then? If that is the problem.
Rgds,
Nash78