Ghazanfar Ali Generator - Utlilizing trapped energy

[dole]

Hi gyulasun,
Thanks, I thought the same, so it's gonna be CMOS Hex Schmitt
d.
"We never have time to do it right,
But we always have time to do it over"

[baroutologos]

Any thoughts at dispencing with simulations and go for the real thing?

[poynt99]

Ali,

I modified my schematic to eliminate the Initial Charge on the capacitor (as you suggested), then ran the circuit for 4 seconds (for complete stability). Shown is the last 100ms of that run.

It's clear from the scope traces of POWER in both the R1 resistor and FG function generator WHERE the power is coming from; in this case, the FG.

I'd like to see your ORCAD version where the circuit is similar to the MS circuit, where the FG is NOT adding energy to the capacitor. Are you able to get that working also and upload it?

Thanks,
.99

[Mannix]

Ali,

I modified my schematic to eliminate the Initial Charge on the capacitor (as you suggested), then ran the circuit for 4 seconds (for complete stability). Shown is the last 100ms of that run.

It's clear from the scope traces of POWER in both the R1 resistor and FG function generator WHERE the power is coming from; in this case, the FG.

I'd like to see your ORCAD version where the circuit is similar to the MS circuit, where the FG is NOT adding energy to the capacitor. Are you able to get that working also and upload it?

Thanks,
.99

the origional circuit without putting the function generator under stress worked with 2 k in series with the frequency source

[poynt99]

the origional circuit without putting the function generator under stress worked with 2 k in series with the frequency source

That's great, but we need to see it operating in ORCAD SPICE this same way. Then I'll be able to sort out where the power is coming from.

.99