Kapanadze Cousin - DALLY FREE ENERGY

[verpies]

I'd like to note that when the Dally Schematic Diagram is redrawn to show the internal transistors inside the TL494, then it becomes apparent that Q1 and Q1 do not amplify the outputs of the TL494 at all. They just complement them on the falling edges only (to increase their fall rates by discharging the gates faster).
The TL494 directly drives the gates of the MOSFETs through D1 and D2 on the raising edges of these pulses.
See the attached equivalent schematic diagram.

[d3x0r]

@ all,

thanks for your comments and advices, allthough some of it add's to my confusion as they are contradicting and make my head spin, like:


"I suspect there is sine wave on push-pull output"     
No sine wave from this TL494, right?

Maybe the 10ohm resistors and the driver transistors smooth the wave?  Would think that more if there were some caps there.... 


(I'm still waiting impatiently for parts)

[Hoppy]

Maybe the 10ohm resistors and the driver transistors smooth the wave?  Would think that more if there were some caps there.... 


(I'm still waiting impatiently for parts)

The 10R resistors help to reduce any parasitic oscillations that can develop on the mosfet gate due to the capacitance of the gate junction.

Hoppy

[itsu]

@verpies,

Thanks for clearing up these confusing points, allthough Hoppy still might have a point with his 50Hz verses 4.6Khz......

...and for God's sake, don't try to transform DC

lol,  i blame it on the TL494 

Regards Itsu

[itsu]

Itsu,

I've just finished building and testing the nano VCO and get 4.6KHz at around centre pot adjustment with 100nF timing caps. It looks as if this is the source of the 4.6KHz. The Dally schematic shows 1nF  caps and these produce around 500KHz! I have seen a circuit element of just the nano VCO and pulser for the Dally version and this shows 100nF timing caps. Now onto the nano pulser.

Regards
Hoppy

Ok Hoppy,  thanks for the info, i will start with the VCO too, what circuit did you use?  the "Dally  2012" with the 74HCT00's?

Regards Itsu