I ran a sim for a BTL configured op-amp. I expect that the instantaneous peak current from the supply will equal the instantaneous peak current through the bridged load.
Ignoring quiescent current and other second order non-linearities if I have X amount of current in the load that same current must be supplied by the bench supply.
So my sim pretty much shows this to save my sanity. It is a little off but the concept is there.
The problem? I do not see this in real life. On my bench the peak current from the supply is half the peak of what is measured through the load.
What gives?
It is a LeCroy Waverunner and I have two current probes. One is clamped around the cable connecting the load and the other probe is clamped around the cable from the DC supply.
It has to be an oscope setting problem or a setup issue on the bench.
Thoughts?
Ignoring quiescent current and other second order non-linearities if I have X amount of current in the load that same current must be supplied by the bench supply.
So my sim pretty much shows this to save my sanity. It is a little off but the concept is there.
The problem? I do not see this in real life. On my bench the peak current from the supply is half the peak of what is measured through the load.
What gives?
It is a LeCroy Waverunner and I have two current probes. One is clamped around the cable connecting the load and the other probe is clamped around the cable from the DC supply.
It has to be an oscope setting problem or a setup issue on the bench.
Thoughts?
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