Quote from: TinselKoala on April 30, 2012, 02:43:58 AM
I understand what "disconnected from the circuit" means. But you as usual define that differently don't you.

Let's see the oscillations with your battery disconnected from the circuit.

That's what you're seeing.  Every time you see an oscillation.  IF the batteries WERE connected then it would pass current through Q1.  Then it would pass current through Q2.  And so on.  Depending on the applied signal at those gates.  That means that either Q1 is on.  Or Q2 is on.  ALWAYS.  Which would give you a continual positive voltage across your current viewing resistor with an occasional default to zero when the signal switches.  There is NO continual positive voltage across the current viewing resistor.  On the contrary.

Rosie Pose

Quote from: Rosemary Ainslie on April 30, 2012, 03:10:58 AM
So you keep saying.  The function generator is not the source of current in our circuit.  It can only apply a voltage at the Gate of Q1 or Q2.  That applied VOLTAGE enables the flow of current from the battery supply source.  It applies a signal.  It does not apply a flow of current.  A current typically returns to its source.  Or it cannot flow.  The source of the function generator's current flow is from the plug.  It goes back to the plug.  The source of the circuit's current flow is from its battery supply source.  It goes back to the battery supply source.  The current from that supply source cannot REACH the function generator's probe - or its terminal.  EVER.  You are arguing that the current from the supply battery runs through the function generator probes to reach the source rail of the battery supply.  I am saying that this is NOT the case.  In fact, I'm saying that it's impossible.  However, either you or right or I'm right.  The evidence is in whether or not that waveform then resolves itself as a positive wave.  Because, if the Gate of Q2 were able to pass current through the function generator probes - then the resulting voltage across the Current Sensing Resistor - would be REMAIN positive.  Therefore the evident voltage across the CSR would be greater than zero and there would then be no oscillation.  There is an oscillation.  therefore the current flow from the battery supply source has not been enabled.

Again,
Rosie Pose

These appear to be English words. But they make no sense as sentences.

Mile High has told you about terminology that you are continuing to abuse.

And nobody has said anything about "the gate of Q2 passing current through the function generator probe" except you in your misrepresentations.

"There is an oscillation.  therefore the current flow from the battery supply source has not been enabled." 
As has been explained to you many times, the oscillations ARE enabling current flow from the battery. You are ignoring the evidence that your own data provides, in addition to ignoring my data. You are not only willfully ignorant, you are pathologically neurotic as well. You have not corrected any of your egregious errors at all.

What is the IsoTech GFG 324 function generator? Where can I find out about this function generator on the internet?

Quote from: TinselKoala on April 30, 2012, 03:30:23 AM
These appear to be English words. But they make no sense as sentences.

Mile High has told you about terminology that you are continuing to abuse.

And nobody has said anything about "the gate of Q2 passing current through the function generator probe" except you in your misrepresentations.

"There is an oscillation.  therefore the current flow from the battery supply source has not been enabled." 
As has been explained to you many times, the oscillations ARE enabling current flow from the battery. You are ignoring the evidence that your own data provides, in addition to ignoring my data. You are not only willfully ignorant, you are pathologically neurotic as well. You have not corrected any of your egregious errors at all.

What is the IsoTech GFG 324 function generator? Where can I find out about this function generator on the internet?

You cannot have the argument both ways TK.  If you are now saying that the current from the battery is enabled at Q2 during the OFF period of each switching cycle - then you'd most CERTAINLY get a positive discharge from the battery.  Because the positive signal at the gates of those MOSFETS ENABLES the flow of current from the battery supply.  In exactly the same way as the positive signal applied to the Gate of Q1 enables a flow of current from the battery supply.  And insulting me does not strengthen your argument.  It simply shows us that you cannot argue this point.  Of course you can't.  You don't even see the argument.

Sadly.
Rosie Pose

Quote from: Rosemary Ainslie on April 30, 2012, 03:28:50 AM
That's what you're seeing.  Every time you see an oscillation.  IF the batteries WERE connected then it would pass current through Q1.  Then it would pass current through Q2.  And so on.  Depending on the applied signal at those gates.  That means that either Q1 is on.  Or Q2 is on.  ALWAYS.  Which would give you a continual positive voltage across your current viewing resistor with an occasional default to zero when the signal switches.  There is NO continual positive voltage across the current viewing resistor.  On the contrary.

Rosie Pose

You again have no idea what you are talking about. During the oscillations the battery is most certainly not disconnected from the circuit. IT IS POWERING THE OSCILLATIONS, you dimwit. Several people have told you that the mosfet(s) are operating in the linear region. You don't know what that means. Look it up.
When you use a POSITIVE going gate drive pulse, the oscillations are turned OFF by the FG's output and there is indeed POSITIVE DC CURRENT FLOW from solidly on mosfets as shown by your own scope shots. When there is only a negative gate drive the oscillations persist and the mosfets operate in the linear current flow region: the resistance from drain to source depends on the magnitude of the charge on the gate, which is modulated by the  oscillations.
THE OSCILLATIONS ARE POWERED BY THE BATTERY AND THE BIAS SOURCE, whether it is a FG, a battery  or the squirrels in your head.

Quote from: Rosemary Ainslie on April 30, 2012, 03:35:34 AM
You cannot have the argument both ways TK.  If you are now saying that the current from the battery is enabled at Q2 during the OFF period of each switching cycle - then you'd most CERTAINLY get a positive discharge from the battery.  Because the positive signal at the gates of those MOSFETS ENABLES the flow of current from the battery supply.  In exactly the same way as the positive signal applied to the Gate of Q1 enables a flow of current from the battery supply.  And insulting me does not strengthen your argument.  It simply shows us that you cannot argue this point.  Of course you can't.  You don't even see the argument.

Sadly.
Rosie Pose

I am banging my head on the keyboard. CAN YOU NOT UNDERSTAND ENGLISH?

When you supply a negative voltage to the source of Q2 you are THEREFORE and at the SAME TIME SUPPLYING A POSITIVE VOLTAGE TO ITS GATE.
Your use of "off portion of switching cycle" is  meaningless. Your FG supplies a voltage that is positive or negative depending on its waveshape setting and the OFFSET. One polarity affects one mosfet, the other polarity affects the other mosfets, you think, but this is much too simple. If you provide a pulse that is from negative to zero to the source pin of your Q2 mosfets, the gate of those mosfets sees a POSITIVE voltage when the source is negative, whether it is from the oscillations or the FG+battery combo, with respect to the source pin, because that's how your circuit is wired. VOLTAGE IS RELATIVE to some reference. A Negative voltage on the source means a positive voltage on the gate. You are turning your Q2 mosfets partially on with the negative voltage to the source and this is what causes the oscillations, as Mile High (I think) described in detail, period by period, some time ago buried under all your crap.

What is the IsoTech GFG 324 function generator? Where can I find information about this on the internet?