From: "Terrell W. Fritz"
Date: Mon, 13 Nov 2000 17:10:45 -0700
Subject: Re: [TSSP] NSVPI - Terminated Coil Results
Hi Paul, At 09:37 PM 11/13/2000 +0000, you wrote: >Terrell W. Fritz wrote: > >> Tonight I finally did the terminated coil case voltage profile. > >Thanks Terry. The setup is a little too different to the tfltr45 >system for me to do a quick comparison. I'd like to postpone the >sims on this until the new capacitance program is running, next week >I hope. No problem, I realized the setup was probably not easy for your program at the moment but I wanted to get a good profile for E-Tesla6. Thus, I set it up like a normal coil system. > >> This coil system had a measured Q of 163.6 so I just added >> 0.394 volts to the measurements to make up for the diode drop. > >I guess you're equating voltage gain to Q factor with the >0.394 volts. You had 0.12 V diode drop on the bare coil results. >Any chance of a direct top volts measurement to normalise the >profile? I expect it will be less than 163.6 V. Obviously, my picking the 0.394 volts was a leap of faith ;-)) It was late and I figured I was good enough for my purpose at that moment... I will try to pin this down better. Probing the top terminal with a probe to get a true top voltage is a great idea but a little too unproven to try on this test where I needed the data for ET6. > >Were you driving the coil through the primary, or into the base? The primary coil was grounded and the base of the secondary was driven form a lowZ 2v p-p sine source. > >Is anyone else working on ways to pickup the V profiles, or are we >leaving all the hard work to Terry? I think a charge storing >probe similar to Terry's, but with a capacitive coupling would >be worth a try, if a way could be found to give the diode a DC path. Yeah! Terry is getting too old to crawl around on the concrete floor (even with pillows) for four hours! :-)) Boy!, am I sore today! :-)) This is a young fella's sport! I tried some capacitive probes ideas but I could not get the diode to turn on. It was like the current was too small or something was not sufficient to turn the junction on. I didn't think about it much since I just went to the direct connection method. I hope to write the testing and such up in a little paper soon that tells more of all the details and pins it all down for future reference. The method really does work remarkably well! Cheers, Terry > >Cheers, >-- >Paul Nicholson, >Manchester, UK. >--
Maintainer Paul Nicholson, paul@abelian.demon.co.uk.