We use the flyback-driver circuit shown in our d.i.y. 250 kV DC power supply in many other of our setups, so we built a stand-alone universal resonant transformer driver. The circuit inside the enclosure comprises a low-voltage, raw-output DC power supply driven from a variac, and the resonant driver circuit shown in the following schematic diagram (click to enlarge):
The low-voltage transformer has a 115 VAC primary and 14 VAC @ 6 A secondary. A 50,000 uF capacitor is used to smooth the output of a CM2502 full-wave-rectifier bridge. A Lascar digital voltmeter measures the voltage of the low-voltage DC power supply.
This instrument drives a resonant transformer in push-pull mode. A feedback coil must be included to make the system oscillate at the transformer’s resonant frequency.
[...] two prior posts show how to build very high voltage power supplies using flybacks from old color TVs. The [...]
[...] http://www.diyphysics.com/2012/02/10/universal-resonant-transformer-driver-high-voltage-flyback-driv… [...]
[...] http://www.diyphysics.com/2012/02/10/universal-resonant-transformer-driver-high-voltage-flyback-driv… [...]
I would like to buy this kit. How can I do it?
Hi Rachael,
This device, like most of what you see in our website is not offered for sale. We built this ourselves and are providing full instructions so that you can build your own from components that you would buy at the various electronic parts distributors.
Cheers,
David
Whats the Part No. of your low voltage transformer(115VAC to 14VAC@ 6A)?
Mouser Part #: 553-F253U
Manufacturer Part #: F253U
Manufacturer: Triad Magnetics
Description: Power Transformer 115VAC 14.0CT 6.0A PRI 115VAC
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