Kapanadze Cousin - DALLY FREE ENERGY

[conico]

You made me curious.
see TC4420 maximum frequency: supply at 15v is 800 Khz ,at 12v is more then 1 Mhz, at 10v is 2 Mhz, at 5v supply is 3Mhz
NE555 supply at 12v maximum frequency is 350-400 Khz, better use 7555 or LMC555.
You can use a 555 as astable for high frequency and the next 555 as divider until 20 Khz.
Good luck!
https://www.yumpu.com/en/document/view/27278219/app-note-28/7

[AlienGrey]

You made me curious.
see TC4420 maximum frequency: supply at 15v is 800 Khz ,at 12v is more then 1 Mhz, at 10v is 2 Mhz, at 5v supply is 3Mhz
NE555 supply at 12v maximum frequency is 350-400 Khz, better use 7555 or LMC555.
You can use a 555 as astable for high frequency and the next 555 as divider until 20 Khz.
Good luck!
https://www.yumpu.com/en/document/view/27278219/app-note-28/7

Conico;  yes interesting phinomina and worth bearing in mind, I can only find Cmos device is the faster claim see http://www.ti.com/lit/ds/symlink/lmc555.pdf at 3mhz.

Have you got any tunning set up for Andians device you can share please ?
Have you tried finding you local environment katcher frequency where things start to happen ? Untill we each know that we are just wasting time and money

|Regards A G

[conico]

I'm working at Ruslan 7 replica, I still have problems with spikes and shifting signals on yoke. A strong snubber is minimise the amplitude of signal and change the frequency on inductor.
I realised that on the load the signal has doubling the frequency i worked.
I'll post a movie when will be ready.

[Jeg]

You made me curious.
see TC4420 maximum frequency: supply at 15v is 800 Khz ,at 12v is more then 1 Mhz, at 10v is 2 Mhz, at 5v supply is 3Mhz
NE555 supply at 12v maximum frequency is 350-400 Khz, better use 7555 or LMC555.
You can use a 555 as astable for high frequency and the next 555 as divider until 20 Khz.
Good luck!
https://www.yumpu.com/en/document/view/27278219/app-note-28/7

Hi conico. Thanks for the advice. I feed my tc4420 with 12V for now, and TLC555 with 5V.

Attached are my scopeshots. Driver is in operation with load. Blue is at the output of 4420, red is the gate signal at the secondary side.
Image 1, a general preview, about 300Khz, 20Khz
Image 2, zoom with a small percent duty cycle, and
Image 3, with about 50%. The more the duty cycle, the less the ringing.   

[conico]

I believe is not ringing so bed, it is acceptable on the gates but see the signals on drain of mosfets.