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<blockquote data-quote="helotaxi" data-source="post: 3665438" data-attributes="member: 550915">V=IZ just like V=IROhm&#039;s law is still Ohm&#039;s law and the fact that current and voltage are not in phase has no bearing on that fact.&nbsp; The voltage induces the current according to Ohm&#039;s law, the current is phase delayed based on coil inductance and the current through the coil actually causes it to move.Last I checked you don&#039;t account for phase delay when plotting the impedance curve cause it just doesn&#039;t matter.&nbsp; It matters for (dictates) the phase response of the driver which matters when trying to blend drivers together in a system, but as far as actual power applied and the impedance properties of the driver, phase is irrelevant.What you are talking about is how to derive the impedance from the basic values.&nbsp; You can go that route, or you can not care about the components of the resultant impedance and just measure it indirectly with a DMM and clamp.</blockquote>

[QUOTE="helotaxi, post: 3665438, member: 550915"] V=IZ just like V=IR Ohm's law is still Ohm's law and the fact that current and voltage are not in phase has no bearing on that fact. The voltage induces the current according to Ohm's law, the current is phase delayed based on coil inductance and the current through the coil actually causes it to move. Last I checked you don't account for phase delay when plotting the impedance curve cause it just doesn't matter. It matters for (dictates) the phase response of the driver which matters when trying to blend drivers together in a system, but as far as actual power applied and the impedance properties of the driver, phase is irrelevant. What you are talking about is how to derive the impedance from the basic values. You can go that route, or you can not care about the components of the resultant impedance and just measure it indirectly with a DMM and clamp. [/QUOTE]

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