Kapanadze Cousin - DALLY FREE ENERGY

[verpies]

Probably the toroidal pulse transformer has a very low inductance and current is growing beyond expected in the drain. I had to increase the number of turns to avoid that. Had exactly this problem before.

I don't think Itsu connected T2 yet. 
He is using a 100Ω resistor between the Drain and Vcc to load his MOSFET for testing.

[itsu]

Ok verpies,

i was expecting you would say something like this :-)
There is no fast and easy way to test this thingy he? Everything needs to be perfect.

Ok, i will need to take care of this 2e voltage supply the same way i did with the primary PS, meaning follow your points 1 to 4 above.
Thanks a lot.


Black_bird,

i presently am not using "the toroidal pulse transformer" to supply 200V to the nano-pulser, but a separate PS with a variac so i can regulate this voltage. 

Regards Itsu

[verpies]

I was expecting you would say something like this :-)
There is no fast and easy way to test this thingy he? Everything needs to be perfect.

Unfortunately, there is not an easy way
Once you start counting the nanoseconds you must start counting the millimeters.

You are still on the easy road.  Once you get to that saturable transformer and the DSR Diodes then the road will really start curving uphill.
Despite appearances, transformers are the most complex electronic components.  Even more so when their saturation effects start to matter.

[verpies]

3) Putting good bypass capacitors across the Source and the Vcc, at the point where the Load Resistor is attached.

I forgot to mention that a "good bypass capacitor" is the parallel combination of low-ESR high value (≥100μF) electrolytic and low value (≈100nF) ceramic capacitors, with short leads positioned as close as possible.

[mihai.isteniuc]

I have start working today on the second oscillator (TL494). From my measurements the frequency can be varied from 6Khz up to 210KHz.

Duty cycle can be varied from 40-60 until the oscillations are gone. I think the 10K resistor connected between terminal 2 of TL494 and the 22k variable resistor it's to small. Seems more like 15k to me to be the correct value, but for the first stage of the replications I will live it like Dally.

Can somebody confirm?

Mihai