Thanks for the offer to try. Was thinking... It may not be fruitfull... Ccrv1 will never see a higher voltage than Ccvr2. That may be a problem. Ccvr1 may punk out once it reaches the voltage difference between source and C1. But thats just thinking that it will all act similar to using the 1ohm resistors, but its not. But, then something interesting happens... C1 begins depleting to the coil, thus more of a voltage offset for Ccvr1 to charge to higher voltage, but I think C1 would keep going down in voltage as that happens causing a mess with measurements. UGGG. Well, I try.
Anyway... I suppose that using the current value from cvr2 we can...
1 simply calc the power dissipated for the resistor 2 use scope function to get power delivered by the cap 3 use the scope function to get power dissipated in the coil
Once you have all 3, see if the cvr2 + coil add up to the total power were seeing delivered by C1. Did someone say at some point to just be rid of C1 and cvr1? Maybe. But, it does take away a baseline measurement that should be very trustworthy. Id measure the coil on time zoomed in to just 1 shot. The transistor is only on for such a short time, and a zoom in on 1 pulse should give an accurate power measurement and if we know the time it took for the pulse to happen and figure that with the time interval between on times, you should have a good average watts used between off and next on time. if it all ends the same as what has been tested, then Id say we have to measure the power dissipated by cvr2 and the coil, to see where all that power is going for sure. Weird stuff
Mags
Mags
Well i did the cap test,and yes,C2 charges to a higher value than C1 by about 1/2 volt. That may not seem like much,but here is what i have--see circuit below. C1 and C2 are 5.5v x 1F super caps. Now two things with this test-- 1-we must be careful here,as C2 is getting some what pulsed charged,and caps can be charged more efficiently with pulse charging. 2-For some reason the circuit stops drawing current once C2 gets close to the 2 volt level,and C1 close to 1.6v. I do not know why,even taking into account the voltage of C3,as when the transistor is on,the series connected C1 and C2 caps have the full 12 volts across them. Even when lifting the power supply to 24 volts,the results are the same. I understand that C3 may stop charging,once the voltage between C3 and C1 get close,but why dose C1 and C2 not continue to climb in voltage?,due to them having 24 volts across then during the on time of the transistor?. Anyway,a scope shot below showing C2 being some what pulse charged,while C1 is charged with a steady DC current. Brad
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