Kapanadze Cousin - DALLY FREE ENERGY

[NickZ]

No, it should read 5V

   OK, I'll check again, but with the kacher off. 
   There is no doubt that the heat is due to both FETs being on at the same time. With duty cycle down low, the FETs are not both on at the same time, and there less heating, but no light at the bulbs. The problem may still be in the TLs duty cycle circuit, as the frequency circuit seams to work OK. But, there's a snare somewhere...  And Stalker has shown that he does have dead time controls working with his circuit, at least to some usable degree.

   EDIT:  Now, without any Kacher working, testing the connection between pin #13 and pin #7 produces NO voltage on my TL494.  And the yoke stops ringing when I test those pins. So it affects something, or stops something, and I get no voltage readings when I try to test those voltage points.

[NickZ]

Some scope shots would really help to diagnose the problem. Even from a blurry scope.

Both mosfets should not be turning on at the same time. If the 494 is producing complimentary outputs from pins 9 and 10 with some dead time as it should be doing, then there must be something wrong downstream.

   But, them there Fets ARE turning ON at the same time, depending on the duty cycle.  So, I do suspect the snubber circuit or the placement of the MUR1560 diode may have something to do with it, as well.
    For there to be any use able output from the driver to the yoke/grenade circuits, the duty cycle needs to be where it would now burn up the fets, in less than a few minutes. Could be down stream... also. The problem is in the dead time, or lack of it. So, duty cycle circuit, or dead time controller may not be working right at all, as Verpies has mentioned.

[verpies]

Now, without any Kacher working, testing the connection between pin #13 and pin #7 produces NO voltage on my TL494. 

No DC voltage there means that something is very wrong.
You must have 5VDC there to have push-pull operation.

[NickZ]

   Yet the yoke is ringing when testing, so there are oscillations, until I connect the meter to 13 and 7 pins, then the ringing stops...
   Strange,  yes.

   TK: Scope shots of what exactly?  And just where should the I connect the probes.
   You can look at the previously posted Stalker diagram, as it's the closest to my set up.

[TinselKoala]

   Yet the yoke is ringing when testing, so there are oscillations, until I connect the meter to 13 and 7 pins, then the ringing stops...
   Strange,  yes.

Yes, strange, since the Voltmeter should be very high impedance and shouldn't affect the performance of the circuit. Are your solder connections all good?

   TK: Scope shots of what exactly?  And just where should the I connect the probes.
   You can look at the previously posted Stalker diagram, as it's the closest to my set up.

Can you post a scopeshot of the mosfet Drains, one on CH1 and the other on CH2, probe grounds to the common Source connection?

According to the Stalker schematic the mosfet common Source connection is at circuit ground, so there should be no problem about ground loops with the scope probe ground leads. Your device is battery powered?

Verpies (and I) would also like to see one mosfet's Drain current on CH1 and voltage on CH2, this is a little more complicated, see Itsu's videos for how to do that.