I can see +1.25V across the CSR during the HI phase (5A) but  overall average current depends on what is happening during the LO oscillating phase as well. Is there an expanded scrn shot available?

The scope has enough cycles to get a rough idea of the mean voltage across the CSR. The only trouble is the CSR inductance can and will throw off the reading a bit, as I showed in my document, but not that much.

Consider that the 179mA could be a realistic value. I would need to see a zoom-in of the oscillation to know if the 179mA is accurate or not. Again, I am talking average current, you have been referring to the current during the HI time.

Quote from: poynt99 on May 16, 2012, 08:37:43 PM
I can see +1.25V across the CSR during the HI phase (5A) but  overall average current depends on what is happening during the LO oscillating phase as well. Is there an expanded scrn shot available?

The scope has enough cycles to get a rough idea of the mean voltage across the CSR. The only trouble is the CSR inductance can and will throw off the reading a bit, as I showed in my document, but not that much.

Consider that the 179mA could be a realistic value. I would need to see a zoom-in of the oscillation to know if the 179mA is accurate or not. Again, I am talking average current, you have been referring to the current during the HI time.

OK, then... .what would the current during the LO time have to be, to average out to 0.179 A overall? 

And we know what the zoom ins look like during the oscillations, don't we?  They have just about as many "RED pixels as GREEN pixels". So how do you get a -4.5 A or whatever it needs to be during those oscs, in order to arrive at the overall 0.179 A figure that you cite?

Quote from: TinselKoala on May 16, 2012, 08:25:42 PM
@.99: Note where the cursors are positioned. Are you getting valid "cycle mean" and "mean" values in the boxes?If so, why are they so different?

TK, the "CYCLE MEAN" is always out to lunch on these types of wave forms, because the scope doesn't know where the cycle begins and where it ends; it is taking a best guess. The only true reading that can be obtained is with plain old MEAN.

I don't think the cursors alter how the MEAN is taken...it should be using the full width that is in the display.

And Stefan, in the unlikely event that you don't open my emails - let me copy you here as well...

Dear Stefan,

Kindly attend edit the appalling allegations that are made by TK, FTC, Sean, PhiChaser and picowatt  which are now escalating to an entirely unacceptable level.  You need to act ASAP - or this work of ours will be irreparably DAMAGED.

Kindest regards,
Rosemary

Quote from: poynt99 on May 16, 2012, 08:44:33 PM
TK, the "CYCLE MEAN" is always out to lunch on these types of wave forms, because the scope doesn't know where the cycle begins and where it ends; it is taking a best guess. The only true reading that can be obtained is with plain old MEAN.

Not actually Poynty Point.  NOT according to the specifications and NOT according to LECROY. 

Rosie pose