So i had an idea in regards to this power measurement issue.
My claim is that there is more power flowing through the coil during each pulse than there is being delivered by the source-that being my power supply.
So far i have shown this by way of scope measurements,and heat dissipated by the CVRs,where CVR1 dissipates less heat than CVR2,meaning more current flowing through CVR2,and thus the coil.
Brad
Let's try to clear some things up regarding power measurements and current readings. First, average current is used to find Pin when the source is DC. So with a 1R CVR/CSR we find Pin by: Iavg x VDC. Iavg can be found with a DMM across the CVR. One can determine Iavg at other points in the circuit, but it is of little interest in terms of power measurements. Second, if one is wanting to determine the average power dissipated in a pure resistance (such as a CVR/CSR), then we use the RMS current through that resistor (not the average current). The fact that CVR2 dissipates double the average power compared to CVR1 is interesting, but is otherwise quite unremarkable. It certainly does not indicate that the circuitry after the battery (not including the FG) is somehow generating extra power above and beyond what the battery is supplying. Third, average power is what matters. Peak powers can exceed average input power, but at the end of the day it comes down to accounting for the average power in all components that can supply and dissipate power. In summary: Average power from a DC supply (Pin): Iavg x VDC Average power in a pure resistance: Irms 2 x R, OR Vrms 2 / R Average power in any device: AVG[v(t) x i(t)]
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