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Frequency splitting and measuring Q
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To: "tesla@grendel.objinc.com" <tesla@grendel.objinc.com>
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Subject: Frequency splitting and measuring Q
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From: SKIP GREINER <sgreiner@wwnet.com>
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Date: Sun, 31 Mar 1996 19:41:46 -0800
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Richard Quick and Richard Hull have both mentioned frequency spliting
when the primary and secondary are overcoupled. I would appreciate it
very much if someone could explain exactly what splitting is and how it
exhibits itself. I suppose if the phenomenom is present then the solution
is to decouple until it goes away... right?
With regard to measuring Q. It seems to me that someplace I have seen a
formula for Q as follows: Q = fc / (f1 - f2). Where fc is the resonant
frequency of a coil, f1 and f2 are the higher and lower frequencies above
and below fr where the voltage drops to .707 of the value at fr. Is this
valid or have I got something wrong ?
As always, thanks in advance for your help
Skip Greiner