Re: Flyback transformer design confusion!!


Terry Given ha scritto:

lemonjuice wrote:


As you and any engineer is well aware of
Power = average voltage * average current

ROTFLMAO!

So, for a 50Hz ac power system driving a resistive load:

Vaverage = 0

Iaverage = 0

==> Paverage = 0

by your reasoning. which (given that my electric oven heats things up)
is patently untrue, and is of course (in the case of AC) why we use RMS.

Root mean square is a statistical mean. Mean is an average. His
reasoning on this point is intact implying that Vaverage or Vmean, I
averge and P average are not necessarily zero.

To give you an example your 100W lamp implies that at 240V ac
you have a current of 0.416A. Both the 240V and the 0.416A are rms
values or in other words averages ... square roots of the average of
square values because we working with negative sinusoids.

then they are NOT averages. by definition. RMS = Root Mean Square.

RMS are by definition statiscal averages


Cheers

Charles

.

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