Kapanadze Cousin - DALLY FREE ENERGY

[magpwr]

Magpwr,
I will try the IGBT too.
Your kacher circuit has a excotic driver IC...is there a reason why you choose such a type?

Reactive power.....long long time ago i posted a pdf about the bifillar capacitor coil in combination with spark gap.
LC timing could be adjusted at the pushpull frequenty in order to get the same proces as the sergey interruptor.

hi apecore,

The other mosfet drivers don't come close for required kacher frequency
For example the maximum frequency for TC44xx series is mere ~150khz if i recall correctly.
The maximum frequency for UCCxxxxxx mosfet driver series is mere ~1.1Mhz.

Both obselete mosfet driver can't handle 20volts supply even at low frequency below 35khz which is required for 1.2kv silicon carbide mosfet for low Rds on.Unless maybe if you use 900volts series SIC mosfet which merely needs 15volts at it's gate.

The IXDI inverted mosfet driver series from IXYS Corp can handle up to ~2Mhz easily without the need to use "2 or 3 stage" suitable "pnp/npn transistors" for high frequency mosfet driver.
This one I/C merely simplify circuit design which can also be applicable for sergey interrupter circuit(Frequency control by mica capacitor for high stability).

The prototype of mine and Akula interrupter circuit both rely on tesla coil resonance frequency.But Sergey circuit needs to be tuned to tesla resonance frequency and needs higher voltage >150volts for tesla primary coil supply to get to 22Kvpp which is overkill.haha.

[apecore]

hi apecore,
The IXDI inverted mosfet driver series from IXYS Corp can handle up to ~2Mhz easily without the need to use "2 or 3 stage" suitable "pnp/npn transistors" for high frequency mosfet driver.
This one I/C merely simplify circuit design which can also be applicable for sergey interrupter circuit(Frequency control by mica capacitor for high stability).

Magpwr thanks,
I understand .....
I will try your kacher circuit,.. also because the ground connection is there on the secondary.
This to get the loop complete to gound.
I will look at your YT vid..
But first finish my pushpull ...
Thanks

[conico]

Two days i was working for nothing. Apecore don't change nothing in your push pull , first put your oscilloscope probe on gates of mosfets and see the signals. If there are clean signals you will work for nothing in gates mosfets, like me.
After two days I was working for make a big distance between mosfets and make them opposites,  make a small distance  between driver and mosfets gates, i have the same result, a good signal on gates and a lot of spikes on drains.
That is because yoke give back spikes and  signals that make double the frequency or invert the signal or kill the mosfets.
So, Mr Vierpies  don't give solutions for bed signals on gates , if you can, give us a solution for bed signals on drains, will be ok.
I am sure that 99% of us have clean signals on gates of mosfets but on drains is very bad.
Lossless clamp kills every signals we need or we don't need, is not so good that lossless clamp for this device.

[apecore]

Two days i was working for nothing. Apecore don't change nothing in your push pull , first put your oscilloscope probe on gates of mosfets and see the signals. If there are clean signals you will work for nothing in gates mosfets, like me.
After two days I was working for make a big distance between mosfets and make them opposites,  make a small distance  between driver and mosfets gates, i have the same results, a good signal on gates and a lot of spikes on drains.
That is because yoke give back spikes and  signals that make double the frequency or invert the signal or kill the mosfets.
So, Mr Vierpies  don't give solutions for bed signals on gates , if you can, give us a solution for bed signals on drains, will be ok.
I am sure that 99% of us have clean signals on gates of mosfets but on drains is very bad.
Lossless clamp kills every signals we need or we don't need, is not so good that lossless clamp for this device.

Conico,
I understand your point of view.
But i take Verpies advice with both hands to get first gates as clean as nescessary.
Sure yoke gives back spikes, we will see what comes out.
I will feed the bemf from the yoke back to the power supply if nescessary,  but this bemf must not be more then normal.
With other words ....max efficiency and minimum input power.
But good to hear that the most important step is the distance driver/mosfet.
Next i will put some ferrite beads as Magpwr said and wich also is mentioned in Verpies attached file.
Scope shots will clearify the results.

[conico]

 Scop shots can tel you what you already have now, , a good signal in gates without changing your push pull in gates mosfets.
If you want to work for nothing is your choice!