ZVS flyback driver DC 36V

I remade my old ZVS flyback driver as seen here
http://4hv.org/e107_files/public/1171916876_540_FT0_img_1901.jpg

and here is my new one
http://farm4.static.flickr.com/3193/2810643896_ecb656bd93_b.jpg

The picture isn't exactly up to date because I replaced the 470ohm resistors with 560ohm resistors to stop the parasitic oscillations I was having trouble with.

In the video the entire thing is drawing about 8A max @ ~14V so that's only about 100W... not much really.

The tank cap's capacitance is .5uF (.488uF mesured). It used to be only two caps as seen here but the caps started heating up a bit at higher powers...
http://farm4.static.flickr.com/3035/2758544143_9ac9756745_b.jpg

The supply's inductor is 214uH and there are 5 turns on the flyback's core. I used the equvelent of a UF4007 and two 1W 12V zener diode. The negative wire is 12 awg and the flyback to driver's wire is 10 awg to handle the current. I used IRFP250N MOSFETs which is better than my old IRF740 ones.

In the video you can see the voltage drop a lot becuase the batteries are kinda old... I am going to build a MOT power supply soon so voltage drop would be less of a problem.

EDIT: new pic
http://farm4.static.flickr.com/3146/2816233909_f828e08fa9_b.jpg

Category:

Science & Technology

Tags:

• ZVS
• flyback
• driver
• HV
• high
• voltage
• arcs
• DC
• plasma
• arc
• sparks
• resonance
• royer
• Mazzilli

[Myke1576]

Do a bit of research on how to build a ZVS driver. It's a really simple driver so you shouldn't have any problem with it. If you do, I recommend that you start out with working with lower voltage projects so you don't hurt yourself. Before turning on the ZVS driver, you should look into the HV safety precautions you should take.

[Myke1576]

A voltage regulator wouldn't help in this case. The regulator needed would be pretty large and would be really expensive. I'm just rewinding an MOT for the voltages I need.

[KingDrewBear]

holy $%#&

[Alex1M6]

@438426x1 No offence, but if you cannot follow the schematic then you shouldn't be playing with high voltages.

[devosbi]

I've found big 12v SLA batteries in series perform quite well as a decent power source.

[438426x1]

can somebody please post a video about how to build a zvs driver? i know what it is, a MOSFET and 2 resistors but how do i specifically set it up?

[juniortore]

should get a voltage regulator to stop the voltage from dropping so the arcs can be drawn out further