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Thank you for your reply.
First part about permeability OK i can understand that,
L=Uo Ur n^2 A /l
as Uo=4pi*10^-7
Ur=core permeability
n=number of turns
A= cross section area
l=winding length
So measuring L , knowing core dimensions ,n and l i can get Ur
(ignoring wire resistance).
But the...
If you have a ferrite transformer and you know its dimensions but ferrite core type is unknown, what would you do to test it?
It has no winding ,you will wind it !!
The transformer is that used in an IDE psu 220 ac input, 12v 2A 5V 2A output.
It is an EI ferrite transformer with
a gap between the center leg of the E shaped part and the I part ,the center leg is cylindrical.
Its dimensions and number of turns for each winding are known (i have...
Thank you for your replies.
If i use single timer,read its value at start of pulses assigned say x then
read three values at the end of each pulse a,b,c hence durations will be a-x ,b-x ,c-x. OK
how will be the compensation or actually what is it ? (i am a beginner) pulse duration is in order...
How can i measure the duration of three pulses all start at the same time but each with different duration ?.
In other words how can i make three counters each start at the same time and then scan for three bits of say portA made as inputs
such that a LOW on certain bit will stop its...
thank you for your answers
yes they are three separate counters ,actually all of them use
the same start ,count variable but each should stop according to
a different condition ,as if you were measuring time taken by three
runners all of them started at the same time but each one will stop...
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