Kapanadze Cousin - DALLY FREE ENERGY

[skywalker66]

Itsu,

find a old PC power supply in halfbridge configuration like in attached schematic, get it's transformer, use its 12V outputs legs
and common as primaries for you and will work. Common you will connect to 24V, and 12V terminals to drains of mosfets.

Good luck !

Edit: As I sugested  above, you'll get about 300Vpp output which at 50% duty cycle means after rectification and filter 150Vdc.

P.S. Sorry for messing this page with large diagram.

[AlienGrey]

   Hey Tomtech:
  I like your 50/50 PWM push-pull. Can that set up control frequency? Or, only the duty cycle?
  Do you have a pic of your "simpler" version that you've built?
 
   IF I can get close enough to the right combination of coil windings turns and tuning caps. And by adding ferrite pieces inside the grenade core, and inside of the Kacher core, and the magnetite magnet in the yoke, etz... I can pretty much not only control the frequency, but add GAIN to the output, as well.

   I'm about to re-connect my Mazilli/yoke back up to the grenade/Kacher circuits.  And fire it up, again.
Preliminary tests are complete. If I could only remember them.... Ha!

Nick your amazing, It was on the Russian site, yonks ago, it's an AFC circuit if the Feq feed back changes the voltage will change ie + or - so it will sort of stablise some what, but you would have to put an extra turn of wire to feed back the F and experiment it's the right way round (in) phase. but use buffers between the outputs and the drains at that frequency or the chip will get hot and blow. You know how to do that don't you ? an npn and a pnp on each driver leg.
View of pcb and underside. This unit is only 12v to 14 at the most regulated the gates are clamped to 12 volt max in this circuit it's been working over a year now from a car battery. The IRF540 only has a max voltage of 100 volt, mine are 1000 volt limit and have internal diodes, with that circuit you back feeding your supply and wasting power and drive.

[Jeg]

Hoppy,

So it seems it (with the UF4007's and C24) is doing its work as a snubber ok.

Regards Itsu

Hi Itsu
Nice work mate! What is the voltage rating of your C24@1uF? What is the wattage of your R27@2.2k? I tried yesterday to use this snubber instead of akula's but it dissipates so much heat that unsolder my resistance which connects the snubber capacitor to the 24V power supply!

[Jeg]

If you have big capacitors holding the rail voltage up, you will have big current traversing your MOSFETs when they turn on.

  I recommend making sure you have a lamp or something connected to the secondary that simulates the approximate power transfer you actually need from this inverter.

Thanks for the tips D1!

What capacity do you recommend in parallel with the power supply?

[Hoppy]

Itsu,

find a old PC power supply in halfbridge configuration like in attached schematic, get it's transformer, use its 12V outputs legs
and common as primaries for you and will work. Common you will connect to 24V, and 12V terminals to drains of mosfets.

Good luck !

Edit: As I sugested  above, you'll get about 300Vpp output which at 50% duty cycle means after rectification and filter 150Vdc.

P.S. Sorry for messing this page with large diagram.

I have attached the connections on my PC transformer for step-up working.

Regards
Hoppy