Kapanadze Cousin - DALLY FREE ENERGY

[Jeg]

@Verpies

The situation is this:

We have the "inductor" line in which a series resonance takes place between an inductor and a tuning cap. When system is working and by the time, inductance changes value due to temperature. Also it changes value when we add load. So frequency of push pull has also to change so to find resonance again inside the inductor line. The only steady value is that of the tuning capacitor. Is it possible to give some guidelines on what has to be done so to correct the frequency that our push pull injects in to this inductor line? Even a block diagram will help.

Thanks

[Jeg]

Jeg,  yes it always is around 5A when in resonance.

Itsu

Thanks Itsu! I'll also check my consumption as i think that it was only 2A when in resonance. But i am not sure and not home right now.

[Dog-One]

I have a big diode at the PS side, perhaps i should also put one at the battery side.

Okay, I was thinking you only had the output of the power supply connected to a load.  Gotcha.

I might need to see a video to be sure, but I'm guessing your power supply is actually trying to charge the battery, which would put even more load on it.

Sounds like the diode you have in-place protects the power supply from being back-feed by the battery, but once the power supply's voltage goes above the battery voltage, then the current flow would reverse and that diode no longer helps.

So if I have things straight in my mind, yes you would need two diodes--one between the battery and the PWM; then another between the power supply and PWM.

That sound right to you?


M@

[T-1000]

There are two reasons why to keep PS looped back into input - the tuning involves it as part of circuit and it also will compensate power required for series resonance. The power draw from the battery is your losses and that what I was asking about - how much? Also when you have it looped the lighting of the bulb also has interest on how much power it take in that condition.

Also I was working in background with Oleg's DC-DC step-up converter and Tesla driver circuits. There are possibly intentional errors in original schematics and after fixing them all I hooked up small Tesla coil. It worked but the IRFP460 mosfet is no good for driving Tesla transformer primary at 1MHz+ range. The gate-source junction consumes about 100mA there which show inefficiency of that MOSFET. That also cause almost short circuit when hooked up with DC-DC converter. Will try other MOSFETs to find best one.

The DC-DC converter transformer details which was missing in Olegs schematics: I made 24+24T primary on small transformer with 1mm diameter magnet wire and the secondary was around 0.25mm for target voltage of about 130V. It gets up to 145V DC in in open end and drops to 87V with 15W 220V microwave bulb.

Cheers!

[verpies]

@Verpies
We have the "inductor" line in which a series resonance takes place between an inductor and a tuning cap. When system is working and by the time, inductance changes value due to temperature. Also it changes value when we add load. So frequency of push pull has also to change so to find resonance again inside the inductor line. The only steady value is that of the tuning capacitor. Is it possible to give some guidelines on what has to be done so to correct the frequency that our push pull injects in to this inductor line? Even a block diagram will help.

That's medium easy for me to draw