Jones Beene wrote:
George,
Actually 166 A (peak)* 12 V(peak) * .05 (duty factor) gives about
100 watts input at an average current of about 8 A
and an average voltage of .6 V.
OK, now I see what you are saying but how does an auto battery provide
166 amps, even if it is peak?
The short answer is "easily". Running a starter motor, (at least some)
automobile batteries can provide several hundred amps. If you need high
current for a short time, a car battery is a pretty good choice. But if
you're running bus bars from the battery, be careful not to let your
ring cross power and ground; you'll get a very hot finger if you do!
At 166 amps, the battery voltage won't be 12 volts, of course, since the
internal resistance is certainly not zero. But apparently Naudin was
measuring voltage continuously so the battery's internal drop isn't an
issue.
Is this what you really think is really happening ?
I don't have an opinion on Naudin's work, but WRT a car battery as a
power source, this doesn't sound unreasonable.
