Claimed OU circuit of Rosemary Ainslie

[poynt99]

Taken from Fuzzy's "Hour 2" data file "2_40us_520V-01_10_08_09.xlr" after the temperature stabilized and before the battery voltage began falling:

Shunt Voltage Average: 0.140904V
Shunt Current Average: 0.563616A
Battery Voltage Average: 29.0548V

Final Resistor Temperature: 145 degrees F, 62.8 degrees C.

Average Power Draw from Battery: 16.37575016 W

This appears to be quite inline with my results so far, although I had about 70 degrees C using 9.5W from the supply (as posted above).

Fuzzy, please post the 555's temperature and try a test using the supply add-on I posted to obtain a battery power measurement for comparison. I think you will find your power draw calculation might even go down this way. 16W seems high for 63 degrees C compared to my results.

.99

[poynt99]

Glen,

One other thing that might be reducing your final temperature are the rubber stoppers. Most likely they are acting like heat sinks drawing some heat away from the bulk of the resistor where you are taking your measurements.

I would suggest you try the test again with the stoppers removed for comparison (if you haven't already done so). I can see the temperature increasing a number of degrees with the same setting (same power draw) as you had previously. Please post what you find

.99 

[Rosemary Ainslie]

Hello MileHigh.  Harvey keeps asking you to resolve that inductance number.  Why are you holding back.  We're all holding our breath over here?  Have you given up on us?

[powercat]

Hmmm it's all very quiet here

1 you are all shocked at how good this circuit really is ?
OR
2 the results are so marginal   you cannot make up your mind ?

.99 any news ?

Anyway here is an old classic / new classic / what ever classic / hope you enjoy
http://www.youtube.com/watch?v=hG8NRPPQOrk
cat

[Rosemary Ainslie]

Hi Cat.  yet again.  That was FANTASTIC. 

I don't know why all has gone quiet here.  MH lost interest possibly?  Fuzzy's due to post later this morning - your tonight - but numbers are hardly marginal.  Still many puzzles to resolve especially related to inductance which h is working on.  We're hoping that MileHigh will do his bit.  But it either defeats him, or it doesn't interest him  or he's away on holiday.  Just not that sure.  Miss his input though.  I would have thought if he'd nothing to say he could at least entertain us with some links - like you did.