Kapanadze Cousin - DALLY FREE ENERGY

[gyulasun]

Hi Nick,

The schematic (Tomtech29 asked the pinouts of the 74HC00) looks like it is a triggerable pulse generator,  (phase and perhaps frequency adjustment possibility like a PLL)  this drives the MOSFET driver IC labeled as IC2. This is all I know about it, I do not follow Ruslan's activities.

The PCB circuit Tomtech29 shows in Reply #8570 may be a very similar circuit to the schematic, except for the 74HC14 (which is an inverting HEX Schmitt trigger), this latter is not shown in the schematic. (In the PCB the MOSFET driver IC is a TC4420.)

Gyula

EDIT     After some search I found the schematic of the PCB board Tomtech29 showed which includes the 74HC14 Schmitt trigger IC, it is inserted between the pulse gen output and the MOSFET driver IC input:
http://realstrannik.com/forum-strannikov/ustanovka-kulabukhova/213-skhemy.html?start=126#9192    maybe it is copied to other forums too.   

[NickZ]

    Gyula:
   Thanks for your reply.
   As I'm looking for a ready made PWM to be used to drive the yoke/grenade crt, does this link below look like something that might work, in your opinion. As I'd rather buy it, than to try make it.
 
  http://www.rmcybernetics.com/shop/pulse-modulator-ocxi

[Bat1Robin2]

Schematic again with my notes.

[gyulasun]

Hi Nick,

The PWM circuit (you gave a link to) seems a very robust, quasi "uncrushable" device,
with good specifications, albeit a little bit expensive. With limited spec, it can work up to
2 MHz (beyond the 1.5 MHz upper specified limit) so you may have to keep your test circuits
operating frequency below 2 MHz, hopefully this "limitation" will never limit you in your progress.

You asked: "does this link below look like something that might work". 
If you mean whether it could work in the schematic shown by Tomtech29 and now by Bat1Robin2
just above this post, then I can only answer I do not know because it depends on whether
the I/O interface for the microprocessor in the PWM board is able to receive and then position
(superpose) a separate pulse onto the output pulse the PWM produces.
(From the full schematic Bat1Robin2 shows above, I mean the separate pulse arriving at
the common point of diodes VD3 and VD4, in the lower left corner of the schematic.).
So it seems that the 74HC00 and its associated circuits in the lower left corner is designed for
a specific task to position a pulse onto another one in an adjustable way and this could be important
for the full setup and the output, I assume.

Gyula

[Tomtech29]

 
Thanks for the good advice
I spent a few hours on this system and I found a lot of the surprises in the wrong sense
Pcb from entering 74HC00P it one knows what's it all I can not comprehend this High-diode in the wrong direction, and so on!
I used this design: