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so N/C, you are saying that in this case current does not immediately reach the 0.75a, but takes time to reach it. i suppose what is happening is when the current initially flows it sets up a magnetic field in the coil. this field in turn produces it's own current which to some degree cancels out the flow of applied current. as this is dc we are talking about, and the electromagnetic effect in question only produces current with a change of magnetic field, the inductance effect will only make a difference momentarily when the current is turned on and off. i get the idea but, in the case of duovalves, this is not necessarily relevant. if you turn the dial to the coolest setting the power is on permanently for instance. most of the time they are either off or on for over a second.
i would be interested to hear from anyone with a seemingly sticking duovalve that has done the impedance test.
I am pleased that you are digging a hole for yourself.. if you knew anything about inductance, even just simple basic stuff,,you would know that when a voltage is removed from an inductance, the magnetic field that collapses back into the coil is out of phase to any incoming voltage, and this voltage does not fall off rapidly, it slowly decays and would appose any incoming voltage from the next cycle. this effect limits the speed of the device, and when you have your digi meter connected what are you measuring,,I do not think that you know .
Lets take a few lines of yours.
so N/C, you are saying that in this case current does not immediately reach the 0.75a, but takes time to reach
it.
How much time do we have then, not forgetting that another pulse is following??
i suppose what is happening is when the current initially flows it sets up a magnetic field in the coil. this field in turn produces it's magnetic field in the coil. this field in turn produces it's own current which to some degree cancels out the flow of applied current. as this is dc we are talking about, and the
Why are you talking about current when that is a side effect of voltage and resistance,, impedance is the current set up in an AC circuit,,this is not AC it is interrupted DC
Would you like to have a go and explain again please,, the middle part is backwards