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Everybody who is interested in high voltage herd about the zvs driver for the flyback transformer. Parts: 2x IRFP250 n-fet 2x 12v zenner diodes 2x 470ohm resistors 2x 10kohm resistors 2x 400v fast diodes 1x inductor 200uH 1x 250v capacitor 0.68uF or higher. Related: zvs tesla coil flyback driver zvs flyback driver flyback driver zvs driver 1000w zvs driver high voltage. Include description. Selected category All. Business & Industrial. DC12V-30V ZVS Tesla Coil Flyback Driver + Ignition Coil For SGTC Marx Generator. 1 product rating [object Object] $19.79. From Hong Kong.
I've got a few questions about the Zero Voltage Switching power supplies and flyback transformers people use to make mini Jacobs Ladders...
(e.g. this thing flyback and ZVS )
The ZVS has 3 output connectors I think two +, and a center negative. Does it make a square-tooth wave across zero volts?
Two wire coils are wrapped around the ferrite core that circles around the outside of the flyback - they're just 4 rotations each, and the top of the bottom coil and the bottom of the top coil are wired together, and go into the central connector of the ZVS.
Why aren't the coils in the flyback used for this?
Why aren't the coils in the flyback used for this?
Also - I read that transformers are tuned to a particular frequency so that the magnetic field has time to collapse, then expand fully to produce the optimal output - this thing doesn't look tuned - is it just making a magnetic field in one direction then using the other coil to pull the magnetic field entirely over in the other?
How is it working without some sort of feedback coil to adjust the ZVS frequency?
Zvs Flyback Tesla Coil Design
Why do the sparks look yellow and fuzzy, not blue/white sharp lines like the black cylinder potted HV spark generators?
What do the screen/focus knobs do (electrically?) - they appear to connect to a smaller high voltage output wire. I guess this inputs near the electron gun emitter to adjust the focus (what's the screen)?
I read some articles and the information is so academic, the practical effects get lost in the telling.
Like nothing mentions the spark appearance relative to frequency, voltage, and amperage.
Like nothing mentions the spark appearance relative to frequency, voltage, and amperage.
They also don't mention the 'hack' of putting windings around the ferrite core externally... (of course because they're teaching fundamental physics/electronics, not 'Hacking your electronics')
To add further to my ignorance.....this ZVS ... doesn't have any mosfets to pull the voltage in any direction.
I'm guessing it wont power the flyback because it's not got those two transistors? How's it managing to switch?
Why is it connected to the two outer connectors and not the middle one which I thought was ground/negative?
Why is it connected to the two outer connectors and not the middle one which I thought was ground/negative?
Zvs Flyback
Thanks!
5 comments
There was a time when making a high voltage project like a Jacob’s ladder took time to build or scrounge some kind of high voltage circuit. The neon sign transformer, Marx generator, or voltage multiplier was the hard part of the project. But nowadays you can get cheap high voltage modules that are quite inexpensive. [PaulGetson] picked up one for under $20 and turned it into a quick and easy Jacob’s ladder.
Zvs Flyback Driver Price
Honestly, once you have high voltage, making a Jacob’s ladder is pretty simple. [Paul] used a cheap plastic box, some coat hanger wire, and some stainless steel bolts.
If you haven’t seen a ladder before, the theory is pretty simple. The high voltage ionizes the air between the two electrodes. The ionized air gets hot and since hot air rises, the spark rises with it, and the electrodes can get further and further apart. Once the spark rises above the electrodes, the process starts over again. You can see these in many old movies to signify some sort of mysterious scientific equipment.
Zvs Flyback Driver
We have covered Jacob’s ladders before, but few of them as simple as this. We’ve even seen simulated ladders, in case you are too timid to work with the high voltage.